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authorLinus Torvalds <torvalds@linux-foundation.org>2008-10-14 19:53:02 -0400
committerLinus Torvalds <torvalds@linux-foundation.org>2008-10-14 19:53:02 -0400
commit278429cff8809958d25415ba0ed32b59866ab1a8 (patch)
tree1085100d82525ff7c0fc93fad475e4320f293548
parente413b210c541acac1a194085627db28a122f3bdf (diff)
parenta05f2c5a2735ee1d68770137fbbfc334d3b9cda9 (diff)
Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6
* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6: i2c-viapro: Add support for SMBus Process Call transactions i2c: Restore i2c_smbus_process_call function i2c: Do earlier driver model init i2c: Only build Tyan SMBus mux drivers on x86 i2c: Guard against oopses from bad init sequences i2c: Document the implementation details of the /dev interface i2c: Improve dev-interface documentation i2c-parport-light: Don't register a platform device resource hwmon: (dme1737) Convert to a new-style i2c driver hwmon: (dme1737) Be less i2c-centric i2c/tps65010: Vibrator hookup to gpiolib i2c-viapro: Add VX800/VX820 support i2c: Renesas Highlander FPGA SMBus support i2c-pca-isa: Don't grab arbitrary resources i2c/isp1301_omap: Convert to a new-style i2c driver, part 2 i2c/isp1301_omap: Convert to a new-style i2c driver, part 1
Diffstat
-rw-r--r--Documentation/i2c/busses/i2c-viapro8
-rw-r--r--Documentation/i2c/dev-interface110
-rw-r--r--Documentation/i2c/smbus-protocol4
-rw-r--r--Documentation/i2c/writing-clients4
-rw-r--r--arch/arm/mach-omap1/board-h3.c4
-rw-r--r--arch/arm/mach-omap2/board-h4.c11
-rw-r--r--drivers/hwmon/dme1737.c320
-rw-r--r--drivers/i2c/busses/Kconfig20
-rw-r--r--drivers/i2c/busses/Makefile1
-rw-r--r--drivers/i2c/busses/i2c-highlander.c498
-rw-r--r--drivers/i2c/busses/i2c-parport-light.c39
-rw-r--r--drivers/i2c/busses/i2c-pca-isa.c20
-rw-r--r--drivers/i2c/busses/i2c-viapro.c17
-rw-r--r--drivers/i2c/chips/isp1301_omap.c141
-rw-r--r--drivers/i2c/chips/tps65010.c12
-rw-r--r--drivers/i2c/i2c-core.c35
16 files changed, 918 insertions, 326 deletions
diff --git a/Documentation/i2c/busses/i2c-viapro b/Documentation/i2c/busses/i2c-viapro
index 1405fb69984c..22efedf60c87 100644
--- a/Documentation/i2c/busses/i2c-viapro
+++ b/Documentation/i2c/busses/i2c-viapro
@@ -16,6 +16,9 @@ Supported adapters:
16 * VIA Technologies, Inc. CX700 16 * VIA Technologies, Inc. CX700
17 Datasheet: available on request and under NDA from VIA 17 Datasheet: available on request and under NDA from VIA
18 18
19 * VIA Technologies, Inc. VX800/VX820
20 Datasheet: available on http://linux.via.com.tw
21
19Authors: 22Authors:
20 Kyösti Mälkki <kmalkki@cc.hut.fi>, 23 Kyösti Mälkki <kmalkki@cc.hut.fi>,
21 Mark D. Studebaker <mdsxyz123@yahoo.com>, 24 Mark D. Studebaker <mdsxyz123@yahoo.com>,
@@ -49,6 +52,7 @@ Your lspci -n listing must show one of these :
49 device 1106:3372 (VT8237S) 52 device 1106:3372 (VT8237S)
50 device 1106:3287 (VT8251) 53 device 1106:3287 (VT8251)
51 device 1106:8324 (CX700) 54 device 1106:8324 (CX700)
55 device 1106:8353 (VX800/VX820)
52 56
53If none of these show up, you should look in the BIOS for settings like 57If none of these show up, you should look in the BIOS for settings like
54enable ACPI / SMBus or even USB. 58enable ACPI / SMBus or even USB.
@@ -57,5 +61,5 @@ Except for the oldest chips (VT82C596A/B, VT82C686A and most probably
57VT8231), this driver supports I2C block transactions. Such transactions 61VT8231), this driver supports I2C block transactions. Such transactions
58are mainly useful to read from and write to EEPROMs. 62are mainly useful to read from and write to EEPROMs.
59 63
60The CX700 additionally appears to support SMBus PEC, although this driver 64The CX700/VX800/VX820 additionally appears to support SMBus PEC, although
61doesn't implement it yet. 65this driver doesn't implement it yet.
diff --git a/Documentation/i2c/dev-interface b/Documentation/i2c/dev-interface
index 9dd79123ddd9..3e742ba25536 100644
--- a/Documentation/i2c/dev-interface
+++ b/Documentation/i2c/dev-interface
@@ -4,6 +4,10 @@ the /dev interface. You need to load module i2c-dev for this.
4 4
5Each registered i2c adapter gets a number, counting from 0. You can 5Each registered i2c adapter gets a number, counting from 0. You can
6examine /sys/class/i2c-dev/ to see what number corresponds to which adapter. 6examine /sys/class/i2c-dev/ to see what number corresponds to which adapter.
7Alternatively, you can run "i2cdetect -l" to obtain a formated list of all
8i2c adapters present on your system at a given time. i2cdetect is part of
9the i2c-tools package.
10
7I2C device files are character device files with major device number 89 11I2C device files are character device files with major device number 89
8and a minor device number corresponding to the number assigned as 12and a minor device number corresponding to the number assigned as
9explained above. They should be called "i2c-%d" (i2c-0, i2c-1, ..., 13explained above. They should be called "i2c-%d" (i2c-0, i2c-1, ...,
@@ -17,30 +21,34 @@ So let's say you want to access an i2c adapter from a C program. The
17first thing to do is "#include <linux/i2c-dev.h>". Please note that 21first thing to do is "#include <linux/i2c-dev.h>". Please note that
18there are two files named "i2c-dev.h" out there, one is distributed 22there are two files named "i2c-dev.h" out there, one is distributed
19with the Linux kernel and is meant to be included from kernel 23with the Linux kernel and is meant to be included from kernel
20driver code, the other one is distributed with lm_sensors and is 24driver code, the other one is distributed with i2c-tools and is
21meant to be included from user-space programs. You obviously want 25meant to be included from user-space programs. You obviously want
22the second one here. 26the second one here.
23 27
24Now, you have to decide which adapter you want to access. You should 28Now, you have to decide which adapter you want to access. You should
25inspect /sys/class/i2c-dev/ to decide this. Adapter numbers are assigned 29inspect /sys/class/i2c-dev/ or run "i2cdetect -l" to decide this.
26somewhat dynamically, so you can not even assume /dev/i2c-0 is the 30Adapter numbers are assigned somewhat dynamically, so you can not
27first adapter. 31assume much about them. They can even change from one boot to the next.
28 32
29Next thing, open the device file, as follows: 33Next thing, open the device file, as follows:
34
30 int file; 35 int file;
31 int adapter_nr = 2; /* probably dynamically determined */ 36 int adapter_nr = 2; /* probably dynamically determined */
32 char filename[20]; 37 char filename[20];
33 38
34 sprintf(filename,"/dev/i2c-%d",adapter_nr); 39 snprintf(filename, 19, "/dev/i2c-%d", adapter_nr);
35 if ((file = open(filename,O_RDWR)) < 0) { 40 file = open(filename, O_RDWR);
41 if (file < 0) {
36 /* ERROR HANDLING; you can check errno to see what went wrong */ 42 /* ERROR HANDLING; you can check errno to see what went wrong */
37 exit(1); 43 exit(1);
38 } 44 }
39 45
40When you have opened the device, you must specify with what device 46When you have opened the device, you must specify with what device
41address you want to communicate: 47address you want to communicate:
48
42 int addr = 0x40; /* The I2C address */ 49 int addr = 0x40; /* The I2C address */
43 if (ioctl(file,I2C_SLAVE,addr) < 0) { 50
51 if (ioctl(file, I2C_SLAVE, addr) < 0) {
44 /* ERROR HANDLING; you can check errno to see what went wrong */ 52 /* ERROR HANDLING; you can check errno to see what went wrong */
45 exit(1); 53 exit(1);
46 } 54 }
@@ -48,31 +56,41 @@ address you want to communicate:
48Well, you are all set up now. You can now use SMBus commands or plain 56Well, you are all set up now. You can now use SMBus commands or plain
49I2C to communicate with your device. SMBus commands are preferred if 57I2C to communicate with your device. SMBus commands are preferred if
50the device supports them. Both are illustrated below. 58the device supports them. Both are illustrated below.
59
51 __u8 register = 0x10; /* Device register to access */ 60 __u8 register = 0x10; /* Device register to access */
52 __s32 res; 61 __s32 res;
53 char buf[10]; 62 char buf[10];
63
54 /* Using SMBus commands */ 64 /* Using SMBus commands */
55 res = i2c_smbus_read_word_data(file,register); 65 res = i2c_smbus_read_word_data(file, register);
56 if (res < 0) { 66 if (res < 0) {
57 /* ERROR HANDLING: i2c transaction failed */ 67 /* ERROR HANDLING: i2c transaction failed */
58 } else { 68 } else {
59 /* res contains the read word */ 69 /* res contains the read word */
60 } 70 }
71
61 /* Using I2C Write, equivalent of 72 /* Using I2C Write, equivalent of
62 i2c_smbus_write_word_data(file,register,0x6543) */ 73 i2c_smbus_write_word_data(file, register, 0x6543) */
63 buf[0] = register; 74 buf[0] = register;
64 buf[1] = 0x43; 75 buf[1] = 0x43;
65 buf[2] = 0x65; 76 buf[2] = 0x65;
66 if ( write(file,buf,3) != 3) { 77 if (write(file, buf, 3) ! =3) {
67 /* ERROR HANDLING: i2c transaction failed */ 78 /* ERROR HANDLING: i2c transaction failed */
68 } 79 }
80
69 /* Using I2C Read, equivalent of i2c_smbus_read_byte(file) */ 81 /* Using I2C Read, equivalent of i2c_smbus_read_byte(file) */
70 if (read(file,buf,1) != 1) { 82 if (read(file, buf, 1) != 1) {
71 /* ERROR HANDLING: i2c transaction failed */ 83 /* ERROR HANDLING: i2c transaction failed */
72 } else { 84 } else {
73 /* buf[0] contains the read byte */ 85 /* buf[0] contains the read byte */
74 } 86 }
75 87
88Note that only a subset of the I2C and SMBus protocols can be achieved by
89the means of read() and write() calls. In particular, so-called combined
90transactions (mixing read and write messages in the same transaction)
91aren't supported. For this reason, this interface is almost never used by
92user-space programs.
93
76IMPORTANT: because of the use of inline functions, you *have* to use 94IMPORTANT: because of the use of inline functions, you *have* to use
77'-O' or some variation when you compile your program! 95'-O' or some variation when you compile your program!
78 96
@@ -80,31 +98,29 @@ IMPORTANT: because of the use of inline functions, you *have* to use
80Full interface description 98Full interface description
81========================== 99==========================
82 100
83The following IOCTLs are defined and fully supported 101The following IOCTLs are defined:
84(see also i2c-dev.h):
85 102
86ioctl(file,I2C_SLAVE,long addr) 103ioctl(file, I2C_SLAVE, long addr)
87 Change slave address. The address is passed in the 7 lower bits of the 104 Change slave address. The address is passed in the 7 lower bits of the
88 argument (except for 10 bit addresses, passed in the 10 lower bits in this 105 argument (except for 10 bit addresses, passed in the 10 lower bits in this
89 case). 106 case).
90 107
91ioctl(file,I2C_TENBIT,long select) 108ioctl(file, I2C_TENBIT, long select)
92 Selects ten bit addresses if select not equals 0, selects normal 7 bit 109 Selects ten bit addresses if select not equals 0, selects normal 7 bit
93 addresses if select equals 0. Default 0. This request is only valid 110 addresses if select equals 0. Default 0. This request is only valid
94 if the adapter has I2C_FUNC_10BIT_ADDR. 111 if the adapter has I2C_FUNC_10BIT_ADDR.
95 112
96ioctl(file,I2C_PEC,long select) 113ioctl(file, I2C_PEC, long select)
97 Selects SMBus PEC (packet error checking) generation and verification 114 Selects SMBus PEC (packet error checking) generation and verification
98 if select not equals 0, disables if select equals 0. Default 0. 115 if select not equals 0, disables if select equals 0. Default 0.
99 Used only for SMBus transactions. This request only has an effect if the 116 Used only for SMBus transactions. This request only has an effect if the
100 the adapter has I2C_FUNC_SMBUS_PEC; it is still safe if not, it just 117 the adapter has I2C_FUNC_SMBUS_PEC; it is still safe if not, it just
101 doesn't have any effect. 118 doesn't have any effect.
102 119
103ioctl(file,I2C_FUNCS,unsigned long *funcs) 120ioctl(file, I2C_FUNCS, unsigned long *funcs)
104 Gets the adapter functionality and puts it in *funcs. 121 Gets the adapter functionality and puts it in *funcs.
105 122
106ioctl(file,I2C_RDWR,struct i2c_rdwr_ioctl_data *msgset) 123ioctl(file, I2C_RDWR, struct i2c_rdwr_ioctl_data *msgset)
107
108 Do combined read/write transaction without stop in between. 124 Do combined read/write transaction without stop in between.
109 Only valid if the adapter has I2C_FUNC_I2C. The argument is 125 Only valid if the adapter has I2C_FUNC_I2C. The argument is
110 a pointer to a 126 a pointer to a
@@ -120,10 +136,9 @@ ioctl(file,I2C_RDWR,struct i2c_rdwr_ioctl_data *msgset)
120 The slave address and whether to use ten bit address mode has to be 136 The slave address and whether to use ten bit address mode has to be
121 set in each message, overriding the values set with the above ioctl's. 137 set in each message, overriding the values set with the above ioctl's.
122 138
123 139ioctl(file, I2C_SMBUS, struct i2c_smbus_ioctl_data *args)
124Other values are NOT supported at this moment, except for I2C_SMBUS, 140 Not meant to be called directly; instead, use the access functions
125which you should never directly call; instead, use the access functions 141 below.
126below.
127 142
128You can do plain i2c transactions by using read(2) and write(2) calls. 143You can do plain i2c transactions by using read(2) and write(2) calls.
129You do not need to pass the address byte; instead, set it through 144You do not need to pass the address byte; instead, set it through
@@ -148,7 +163,52 @@ what happened. The 'write' transactions return 0 on success; the
148returns the number of values read. The block buffers need not be longer 163returns the number of values read. The block buffers need not be longer
149than 32 bytes. 164than 32 bytes.
150 165
151The above functions are all macros, that resolve to calls to the 166The above functions are all inline functions, that resolve to calls to
152i2c_smbus_access function, that on its turn calls a specific ioctl 167the i2c_smbus_access function, that on its turn calls a specific ioctl
153with the data in a specific format. Read the source code if you 168with the data in a specific format. Read the source code if you
154want to know what happens behind the screens. 169want to know what happens behind the screens.
170
171
172Implementation details
173======================
174
175For the interested, here's the code flow which happens inside the kernel
176when you use the /dev interface to I2C:
177
1781* Your program opens /dev/i2c-N and calls ioctl() on it, as described in
179section "C example" above.
180
1812* These open() and ioctl() calls are handled by the i2c-dev kernel
182driver: see i2c-dev.c:i2cdev_open() and i2c-dev.c:i2cdev_ioctl(),
183respectively. You can think of i2c-dev as a generic I2C chip driver
184that can be programmed from user-space.
185
1863* Some ioctl() calls are for administrative tasks and are handled by
187i2c-dev directly. Examples include I2C_SLAVE (set the address of the
188device you want to access) and I2C_PEC (enable or disable SMBus error
189checking on future transactions.)
190
1914* Other ioctl() calls are converted to in-kernel function calls by
192i2c-dev. Examples include I2C_FUNCS, which queries the I2C adapter
193functionality using i2c.h:i2c_get_functionality(), and I2C_SMBUS, which
194performs an SMBus transaction using i2c-core.c:i2c_smbus_xfer().
195
196The i2c-dev driver is responsible for checking all the parameters that
197come from user-space for validity. After this point, there is no
198difference between these calls that came from user-space through i2c-dev
199and calls that would have been performed by kernel I2C chip drivers
200directly. This means that I2C bus drivers don't need to implement
201anything special to support access from user-space.
202
2035* These i2c-core.c/i2c.h functions are wrappers to the actual
204implementation of your I2C bus driver. Each adapter must declare
205callback functions implementing these standard calls.
206i2c.h:i2c_get_functionality() calls i2c_adapter.algo->functionality(),
207while i2c-core.c:i2c_smbus_xfer() calls either
208adapter.algo->smbus_xfer() if it is implemented, or if not,
209i2c-core.c:i2c_smbus_xfer_emulated() which in turn calls
210i2c_adapter.algo->master_xfer().
211
212After your I2C bus driver has processed these requests, execution runs
213up the call chain, with almost no processing done, except by i2c-dev to
214package the returned data, if any, in suitable format for the ioctl.
diff --git a/Documentation/i2c/smbus-protocol b/Documentation/i2c/smbus-protocol
index 24bfb65da17d..9df47441f0e7 100644
--- a/Documentation/i2c/smbus-protocol
+++ b/Documentation/i2c/smbus-protocol
@@ -109,8 +109,8 @@ specified through the Comm byte.
109S Addr Wr [A] Comm [A] DataLow [A] DataHigh [A] P 109S Addr Wr [A] Comm [A] DataLow [A] DataHigh [A] P
110 110
111 111
112SMBus Process Call 112SMBus Process Call: i2c_smbus_process_call()
113================== 113=============================================
114 114
115This command selects a device register (through the Comm byte), sends 115This command selects a device register (through the Comm byte), sends
11616 bits of data to it, and reads 16 bits of data in return. 11616 bits of data to it, and reads 16 bits of data in return.
diff --git a/Documentation/i2c/writing-clients b/Documentation/i2c/writing-clients
index 6b61b3a2e90b..d73ee117a8ca 100644
--- a/Documentation/i2c/writing-clients
+++ b/Documentation/i2c/writing-clients
@@ -606,6 +606,8 @@ SMBus communication
606 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command); 606 extern s32 i2c_smbus_read_word_data(struct i2c_client * client, u8 command);
607 extern s32 i2c_smbus_write_word_data(struct i2c_client * client, 607 extern s32 i2c_smbus_write_word_data(struct i2c_client * client,
608 u8 command, u16 value); 608 u8 command, u16 value);
609 extern s32 i2c_smbus_process_call(struct i2c_client *client,
610 u8 command, u16 value);
609 extern s32 i2c_smbus_read_block_data(struct i2c_client * client, 611 extern s32 i2c_smbus_read_block_data(struct i2c_client * client,
610 u8 command, u8 *values); 612 u8 command, u8 *values);
611 extern s32 i2c_smbus_write_block_data(struct i2c_client * client, 613 extern s32 i2c_smbus_write_block_data(struct i2c_client * client,
@@ -621,8 +623,6 @@ These ones were removed from i2c-core because they had no users, but could
621be added back later if needed: 623be added back later if needed:
622 624
623 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value); 625 extern s32 i2c_smbus_write_quick(struct i2c_client * client, u8 value);
624 extern s32 i2c_smbus_process_call(struct i2c_client * client,
625 u8 command, u16 value);
626 extern s32 i2c_smbus_block_process_call(struct i2c_client *client, 626 extern s32 i2c_smbus_block_process_call(struct i2c_client *client,
627 u8 command, u8 length, 627 u8 command, u8 length,
628 u8 *values) 628 u8 *values)
diff --git a/arch/arm/mach-omap1/board-h3.c b/arch/arm/mach-omap1/board-h3.c
index 2ced6d9984d2..adfcd7b51393 100644
--- a/arch/arm/mach-omap1/board-h3.c
+++ b/arch/arm/mach-omap1/board-h3.c
@@ -476,6 +476,10 @@ static struct i2c_board_info __initdata h3_i2c_board_info[] = {
476 I2C_BOARD_INFO("tps65013", 0x48), 476 I2C_BOARD_INFO("tps65013", 0x48),
477 /* .irq = OMAP_GPIO_IRQ(??), */ 477 /* .irq = OMAP_GPIO_IRQ(??), */
478 }, 478 },
479 {
480 I2C_BOARD_INFO("isp1301_omap", 0x2d),
481 .irq = OMAP_GPIO_IRQ(14),
482 },
479}; 483};
480 484
481static struct omap_gpio_switch h3_gpio_switches[] __initdata = { 485static struct omap_gpio_switch h3_gpio_switches[] __initdata = {
diff --git a/arch/arm/mach-omap2/board-h4.c b/arch/arm/mach-omap2/board-h4.c
index d4e3b6fc4705..2fef2c845083 100644
--- a/arch/arm/mach-omap2/board-h4.c
+++ b/arch/arm/mach-omap2/board-h4.c
@@ -18,6 +18,7 @@
18#include <linux/mtd/partitions.h> 18#include <linux/mtd/partitions.h>
19#include <linux/delay.h> 19#include <linux/delay.h>
20#include <linux/workqueue.h> 20#include <linux/workqueue.h>
21#include <linux/i2c.h>
21#include <linux/input.h> 22#include <linux/input.h>
22#include <linux/err.h> 23#include <linux/err.h>
23#include <linux/clk.h> 24#include <linux/clk.h>
@@ -391,6 +392,13 @@ static struct omap_board_config_kernel h4_config[] = {
391 { OMAP_TAG_LCD, &h4_lcd_config }, 392 { OMAP_TAG_LCD, &h4_lcd_config },
392}; 393};
393 394
395static struct i2c_board_info __initdata h4_i2c_board_info[] = {
396 {
397 I2C_BOARD_INFO("isp1301_omap", 0x2d),
398 .irq = OMAP_GPIO_IRQ(125),
399 },
400};
401
394static void __init omap_h4_init(void) 402static void __init omap_h4_init(void)
395{ 403{
396 /* 404 /*
@@ -411,6 +419,9 @@ static void __init omap_h4_init(void)
411 } 419 }
412#endif 420#endif
413 421
422 i2c_register_board_info(1, h4_i2c_board_info,
423 ARRAY_SIZE(h4_i2c_board_info));
424
414 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices)); 425 platform_add_devices(h4_devices, ARRAY_SIZE(h4_devices));
415 omap_board_config = h4_config; 426 omap_board_config = h4_config;
416 omap_board_config_size = ARRAY_SIZE(h4_config); 427 omap_board_config_size = ARRAY_SIZE(h4_config);
diff --git a/drivers/hwmon/dme1737.c b/drivers/hwmon/dme1737.c
index cdb8311e4ef7..27a5d397f9a1 100644
--- a/drivers/hwmon/dme1737.c
+++ b/drivers/hwmon/dme1737.c
@@ -175,11 +175,11 @@ static const u8 DME1737_BIT_ALARM_FAN[] = {10, 11, 12, 13, 22, 23};
175 * Data structures and manipulation thereof 175 * Data structures and manipulation thereof
176 * --------------------------------------------------------------------- */ 176 * --------------------------------------------------------------------- */
177 177
178/* For ISA chips, we abuse the i2c_client addr and name fields. We also use
179 the driver field to differentiate between I2C and ISA chips. */
180struct dme1737_data { 178struct dme1737_data {
181 struct i2c_client client; 179 struct i2c_client *client; /* for I2C devices only */
182 struct device *hwmon_dev; 180 struct device *hwmon_dev;
181 const char *name;
182 unsigned int addr; /* for ISA devices only */
183 183
184 struct mutex update_lock; 184 struct mutex update_lock;
185 int valid; /* !=0 if following fields are valid */ 185 int valid; /* !=0 if following fields are valid */
@@ -512,11 +512,12 @@ static inline int PWM_OFF_TO_REG(int val, int ix, int reg)
512 * before calling dme1737_read or dme1737_write. 512 * before calling dme1737_read or dme1737_write.
513 * --------------------------------------------------------------------- */ 513 * --------------------------------------------------------------------- */
514 514
515static u8 dme1737_read(struct i2c_client *client, u8 reg) 515static u8 dme1737_read(const struct dme1737_data *data, u8 reg)
516{ 516{
517 struct i2c_client *client = data->client;
517 s32 val; 518 s32 val;
518 519
519 if (client->driver) { /* I2C device */ 520 if (client) { /* I2C device */
520 val = i2c_smbus_read_byte_data(client, reg); 521 val = i2c_smbus_read_byte_data(client, reg);
521 522
522 if (val < 0) { 523 if (val < 0) {
@@ -525,18 +526,19 @@ static u8 dme1737_read(struct i2c_client *client, u8 reg)
525 "maintainer.\n", reg); 526 "maintainer.\n", reg);
526 } 527 }
527 } else { /* ISA device */ 528 } else { /* ISA device */
528 outb(reg, client->addr); 529 outb(reg, data->addr);
529 val = inb(client->addr + 1); 530 val = inb(data->addr + 1);
530 } 531 }
531 532
532 return val; 533 return val;
533} 534}
534 535
535static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val) 536static s32 dme1737_write(const struct dme1737_data *data, u8 reg, u8 val)
536{ 537{
538 struct i2c_client *client = data->client;
537 s32 res = 0; 539 s32 res = 0;
538 540
539 if (client->driver) { /* I2C device */ 541 if (client) { /* I2C device */
540 res = i2c_smbus_write_byte_data(client, reg, val); 542 res = i2c_smbus_write_byte_data(client, reg, val);
541 543
542 if (res < 0) { 544 if (res < 0) {
@@ -545,8 +547,8 @@ static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val)
545 "maintainer.\n", reg); 547 "maintainer.\n", reg);
546 } 548 }
547 } else { /* ISA device */ 549 } else { /* ISA device */
548 outb(reg, client->addr); 550 outb(reg, data->addr);
549 outb(val, client->addr + 1); 551 outb(val, data->addr + 1);
550 } 552 }
551 553
552 return res; 554 return res;
@@ -555,7 +557,6 @@ static s32 dme1737_write(struct i2c_client *client, u8 reg, u8 val)
555static struct dme1737_data *dme1737_update_device(struct device *dev) 557static struct dme1737_data *dme1737_update_device(struct device *dev)
556{ 558{
557 struct dme1737_data *data = dev_get_drvdata(dev); 559 struct dme1737_data *data = dev_get_drvdata(dev);
558 struct i2c_client *client = &data->client;
559 int ix; 560 int ix;
560 u8 lsb[5]; 561 u8 lsb[5];
561 562
@@ -563,7 +564,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
563 564
564 /* Enable a Vbat monitoring cycle every 10 mins */ 565 /* Enable a Vbat monitoring cycle every 10 mins */
565 if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) { 566 if (time_after(jiffies, data->last_vbat + 600 * HZ) || !data->valid) {
566 dme1737_write(client, DME1737_REG_CONFIG, dme1737_read(client, 567 dme1737_write(data, DME1737_REG_CONFIG, dme1737_read(data,
567 DME1737_REG_CONFIG) | 0x10); 568 DME1737_REG_CONFIG) | 0x10);
568 data->last_vbat = jiffies; 569 data->last_vbat = jiffies;
569 } 570 }
@@ -571,7 +572,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
571 /* Sample register contents every 1 sec */ 572 /* Sample register contents every 1 sec */
572 if (time_after(jiffies, data->last_update + HZ) || !data->valid) { 573 if (time_after(jiffies, data->last_update + HZ) || !data->valid) {
573 if (data->type != sch5027) { 574 if (data->type != sch5027) {
574 data->vid = dme1737_read(client, DME1737_REG_VID) & 575 data->vid = dme1737_read(data, DME1737_REG_VID) &
575 0x3f; 576 0x3f;
576 } 577 }
577 578
@@ -580,11 +581,11 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
580 /* Voltage inputs are stored as 16 bit values even 581 /* Voltage inputs are stored as 16 bit values even
581 * though they have only 12 bits resolution. This is 582 * though they have only 12 bits resolution. This is
582 * to make it consistent with the temp inputs. */ 583 * to make it consistent with the temp inputs. */
583 data->in[ix] = dme1737_read(client, 584 data->in[ix] = dme1737_read(data,
584 DME1737_REG_IN(ix)) << 8; 585 DME1737_REG_IN(ix)) << 8;
585 data->in_min[ix] = dme1737_read(client, 586 data->in_min[ix] = dme1737_read(data,
586 DME1737_REG_IN_MIN(ix)); 587 DME1737_REG_IN_MIN(ix));
587 data->in_max[ix] = dme1737_read(client, 588 data->in_max[ix] = dme1737_read(data,
588 DME1737_REG_IN_MAX(ix)); 589 DME1737_REG_IN_MAX(ix));
589 } 590 }
590 591
@@ -595,14 +596,14 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
595 * to take advantage of implicit conversions between 596 * to take advantage of implicit conversions between
596 * register values (2's complement) and temp values 597 * register values (2's complement) and temp values
597 * (signed decimal). */ 598 * (signed decimal). */
598 data->temp[ix] = dme1737_read(client, 599 data->temp[ix] = dme1737_read(data,
599 DME1737_REG_TEMP(ix)) << 8; 600 DME1737_REG_TEMP(ix)) << 8;
600 data->temp_min[ix] = dme1737_read(client, 601 data->temp_min[ix] = dme1737_read(data,
601 DME1737_REG_TEMP_MIN(ix)); 602 DME1737_REG_TEMP_MIN(ix));
602 data->temp_max[ix] = dme1737_read(client, 603 data->temp_max[ix] = dme1737_read(data,
603 DME1737_REG_TEMP_MAX(ix)); 604 DME1737_REG_TEMP_MAX(ix));
604 if (data->type != sch5027) { 605 if (data->type != sch5027) {
605 data->temp_offset[ix] = dme1737_read(client, 606 data->temp_offset[ix] = dme1737_read(data,
606 DME1737_REG_TEMP_OFFSET(ix)); 607 DME1737_REG_TEMP_OFFSET(ix));
607 } 608 }
608 } 609 }
@@ -612,7 +613,7 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
612 * which the registers are read (MSB first, then LSB) is 613 * which the registers are read (MSB first, then LSB) is
613 * important! */ 614 * important! */
614 for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) { 615 for (ix = 0; ix < ARRAY_SIZE(lsb); ix++) {
615 lsb[ix] = dme1737_read(client, 616 lsb[ix] = dme1737_read(data,
616 DME1737_REG_IN_TEMP_LSB(ix)); 617 DME1737_REG_IN_TEMP_LSB(ix));
617 } 618 }
618 for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) { 619 for (ix = 0; ix < ARRAY_SIZE(data->in); ix++) {
@@ -631,19 +632,19 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
631 if (!(data->has_fan & (1 << ix))) { 632 if (!(data->has_fan & (1 << ix))) {
632 continue; 633 continue;
633 } 634 }
634 data->fan[ix] = dme1737_read(client, 635 data->fan[ix] = dme1737_read(data,
635 DME1737_REG_FAN(ix)); 636 DME1737_REG_FAN(ix));
636 data->fan[ix] |= dme1737_read(client, 637 data->fan[ix] |= dme1737_read(data,
637 DME1737_REG_FAN(ix) + 1) << 8; 638 DME1737_REG_FAN(ix) + 1) << 8;
638 data->fan_min[ix] = dme1737_read(client, 639 data->fan_min[ix] = dme1737_read(data,
639 DME1737_REG_FAN_MIN(ix)); 640 DME1737_REG_FAN_MIN(ix));
640 data->fan_min[ix] |= dme1737_read(client, 641 data->fan_min[ix] |= dme1737_read(data,
641 DME1737_REG_FAN_MIN(ix) + 1) << 8; 642 DME1737_REG_FAN_MIN(ix) + 1) << 8;
642 data->fan_opt[ix] = dme1737_read(client, 643 data->fan_opt[ix] = dme1737_read(data,
643 DME1737_REG_FAN_OPT(ix)); 644 DME1737_REG_FAN_OPT(ix));
644 /* fan_max exists only for fan[5-6] */ 645 /* fan_max exists only for fan[5-6] */
645 if (ix > 3) { 646 if (ix > 3) {
646 data->fan_max[ix - 4] = dme1737_read(client, 647 data->fan_max[ix - 4] = dme1737_read(data,
647 DME1737_REG_FAN_MAX(ix)); 648 DME1737_REG_FAN_MAX(ix));
648 } 649 }
649 } 650 }
@@ -655,63 +656,63 @@ static struct dme1737_data *dme1737_update_device(struct device *dev)
655 if (!(data->has_pwm & (1 << ix))) { 656 if (!(data->has_pwm & (1 << ix))) {
656 continue; 657 continue;
657 } 658 }
658 data->pwm[ix] = dme1737_read(client, 659 data->pwm[ix] = dme1737_read(data,
659 DME1737_REG_PWM(ix)); 660 DME1737_REG_PWM(ix));
660 data->pwm_freq[ix] = dme1737_read(client, 661 data->pwm_freq[ix] = dme1737_read(data,
661 DME1737_REG_PWM_FREQ(ix)); 662 DME1737_REG_PWM_FREQ(ix));
662 /* pwm_config and pwm_min exist only for pwm[1-3] */ 663 /* pwm_config and pwm_min exist only for pwm[1-3] */
663 if (ix < 3) { 664 if (ix < 3) {
664 data->pwm_config[ix] = dme1737_read(client, 665 data->pwm_config[ix] = dme1737_read(data,
665 DME1737_REG_PWM_CONFIG(ix)); 666 DME1737_REG_PWM_CONFIG(ix));
666 data->pwm_min[ix] = dme1737_read(client, 667 data->pwm_min[ix] = dme1737_read(data,
667 DME1737_REG_PWM_MIN(ix)); 668 DME1737_REG_PWM_MIN(ix));
668 } 669 }
669 } 670 }
670 for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) { 671 for (ix = 0; ix < ARRAY_SIZE(data->pwm_rr); ix++) {
671 data->pwm_rr[ix] = dme1737_read(client, 672 data->pwm_rr[ix] = dme1737_read(data,
672 DME1737_REG_PWM_RR(ix)); 673 DME1737_REG_PWM_RR(ix));
673 } 674 }
674 675
675 /* Thermal zone registers */ 676 /* Thermal zone registers */
676 for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) { 677 for (ix = 0; ix < ARRAY_SIZE(data->zone_low); ix++) {
677 data->zone_low[ix] = dme1737_read(client, 678 data->zone_low[ix] = dme1737_read(data,
678 DME1737_REG_ZONE_LOW(ix)); 679 DME1737_REG_ZONE_LOW(ix));
679 data->zone_abs[ix] = dme1737_read(client, 680 data->zone_abs[ix] = dme1737_read(data,
680 DME1737_REG_ZONE_ABS(ix)); 681 DME1737_REG_ZONE_ABS(ix));
681 } 682 }
682 if (data->type != sch5027) { 683 if (data->type != sch5027) {
683 for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) { 684 for (ix = 0; ix < ARRAY_SIZE(data->zone_hyst); ix++) {
684 data->zone_hyst[ix] = dme1737_read(client, 685 data->zone_hyst[ix] = dme1737_read(data,
685 DME1737_REG_ZONE_HYST(ix)); 686 DME1737_REG_ZONE_HYST(ix));
686 } 687 }
687 } 688 }
688 689
689 /* Alarm registers */ 690 /* Alarm registers */
690 data->alarms = dme1737_read(client, 691 data->alarms = dme1737_read(data,
691 DME1737_REG_ALARM1); 692 DME1737_REG_ALARM1);
692 /* Bit 7 tells us if the other alarm registers are non-zero and 693 /* Bit 7 tells us if the other alarm registers are non-zero and
693 * therefore also need to be read */ 694 * therefore also need to be read */
694 if (data->alarms & 0x80) { 695 if (data->alarms & 0x80) {
695 data->alarms |= dme1737_read(client, 696 data->alarms |= dme1737_read(data,
696 DME1737_REG_ALARM2) << 8; 697 DME1737_REG_ALARM2) << 8;
697 data->alarms |= dme1737_read(client, 698 data->alarms |= dme1737_read(data,
698 DME1737_REG_ALARM3) << 16; 699 DME1737_REG_ALARM3) << 16;
699 } 700 }
700 701
701 /* The ISA chips require explicit clearing of alarm bits. 702 /* The ISA chips require explicit clearing of alarm bits.
702 * Don't worry, an alarm will come back if the condition 703 * Don't worry, an alarm will come back if the condition
703 * that causes it still exists */ 704 * that causes it still exists */
704 if (!client->driver) { 705 if (!data->client) {
705 if (data->alarms & 0xff0000) { 706 if (data->alarms & 0xff0000) {
706 dme1737_write(client, DME1737_REG_ALARM3, 707 dme1737_write(data, DME1737_REG_ALARM3,
707 0xff); 708 0xff);
708 } 709 }
709 if (data->alarms & 0xff00) { 710 if (data->alarms & 0xff00) {
710 dme1737_write(client, DME1737_REG_ALARM2, 711 dme1737_write(data, DME1737_REG_ALARM2,
711 0xff); 712 0xff);
712 } 713 }
713 if (data->alarms & 0xff) { 714 if (data->alarms & 0xff) {
714 dme1737_write(client, DME1737_REG_ALARM1, 715 dme1737_write(data, DME1737_REG_ALARM1,
715 0xff); 716 0xff);
716 } 717 }
717 } 718 }
@@ -770,7 +771,6 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr,
770 const char *buf, size_t count) 771 const char *buf, size_t count)
771{ 772{
772 struct dme1737_data *data = dev_get_drvdata(dev); 773 struct dme1737_data *data = dev_get_drvdata(dev);
773 struct i2c_client *client = &data->client;
774 struct sensor_device_attribute_2 774 struct sensor_device_attribute_2
775 *sensor_attr_2 = to_sensor_dev_attr_2(attr); 775 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
776 int ix = sensor_attr_2->index; 776 int ix = sensor_attr_2->index;
@@ -781,12 +781,12 @@ static ssize_t set_in(struct device *dev, struct device_attribute *attr,
781 switch (fn) { 781 switch (fn) {
782 case SYS_IN_MIN: 782 case SYS_IN_MIN:
783 data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]); 783 data->in_min[ix] = IN_TO_REG(val, data->in_nominal[ix]);
784 dme1737_write(client, DME1737_REG_IN_MIN(ix), 784 dme1737_write(data, DME1737_REG_IN_MIN(ix),
785 data->in_min[ix]); 785 data->in_min[ix]);
786 break; 786 break;
787 case SYS_IN_MAX: 787 case SYS_IN_MAX:
788 data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]); 788 data->in_max[ix] = IN_TO_REG(val, data->in_nominal[ix]);
789 dme1737_write(client, DME1737_REG_IN_MAX(ix), 789 dme1737_write(data, DME1737_REG_IN_MAX(ix),
790 data->in_max[ix]); 790 data->in_max[ix]);
791 break; 791 break;
792 default: 792 default:
@@ -850,7 +850,6 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
850 const char *buf, size_t count) 850 const char *buf, size_t count)
851{ 851{
852 struct dme1737_data *data = dev_get_drvdata(dev); 852 struct dme1737_data *data = dev_get_drvdata(dev);
853 struct i2c_client *client = &data->client;
854 struct sensor_device_attribute_2 853 struct sensor_device_attribute_2
855 *sensor_attr_2 = to_sensor_dev_attr_2(attr); 854 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
856 int ix = sensor_attr_2->index; 855 int ix = sensor_attr_2->index;
@@ -861,17 +860,17 @@ static ssize_t set_temp(struct device *dev, struct device_attribute *attr,
861 switch (fn) { 860 switch (fn) {
862 case SYS_TEMP_MIN: 861 case SYS_TEMP_MIN:
863 data->temp_min[ix] = TEMP_TO_REG(val); 862 data->temp_min[ix] = TEMP_TO_REG(val);
864 dme1737_write(client, DME1737_REG_TEMP_MIN(ix), 863 dme1737_write(data, DME1737_REG_TEMP_MIN(ix),
865 data->temp_min[ix]); 864 data->temp_min[ix]);
866 break; 865 break;
867 case SYS_TEMP_MAX: 866 case SYS_TEMP_MAX:
868 data->temp_max[ix] = TEMP_TO_REG(val); 867 data->temp_max[ix] = TEMP_TO_REG(val);
869 dme1737_write(client, DME1737_REG_TEMP_MAX(ix), 868 dme1737_write(data, DME1737_REG_TEMP_MAX(ix),
870 data->temp_max[ix]); 869 data->temp_max[ix]);
871 break; 870 break;
872 case SYS_TEMP_OFFSET: 871 case SYS_TEMP_OFFSET:
873 data->temp_offset[ix] = TEMP_TO_REG(val); 872 data->temp_offset[ix] = TEMP_TO_REG(val);
874 dme1737_write(client, DME1737_REG_TEMP_OFFSET(ix), 873 dme1737_write(data, DME1737_REG_TEMP_OFFSET(ix),
875 data->temp_offset[ix]); 874 data->temp_offset[ix]);
876 break; 875 break;
877 default: 876 default:
@@ -939,7 +938,6 @@ static ssize_t set_zone(struct device *dev, struct device_attribute *attr,
939 const char *buf, size_t count) 938 const char *buf, size_t count)
940{ 939{
941 struct dme1737_data *data = dev_get_drvdata(dev); 940 struct dme1737_data *data = dev_get_drvdata(dev);
942 struct i2c_client *client = &data->client;
943 struct sensor_device_attribute_2 941 struct sensor_device_attribute_2
944 *sensor_attr_2 = to_sensor_dev_attr_2(attr); 942 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
945 int ix = sensor_attr_2->index; 943 int ix = sensor_attr_2->index;
@@ -950,37 +948,37 @@ static ssize_t set_zone(struct device *dev, struct device_attribute *attr,
950 switch (fn) { 948 switch (fn) {
951 case SYS_ZONE_AUTO_POINT1_TEMP_HYST: 949 case SYS_ZONE_AUTO_POINT1_TEMP_HYST:
952 /* Refresh the cache */ 950 /* Refresh the cache */
953 data->zone_low[ix] = dme1737_read(client, 951 data->zone_low[ix] = dme1737_read(data,
954 DME1737_REG_ZONE_LOW(ix)); 952 DME1737_REG_ZONE_LOW(ix));
955 /* Modify the temp hyst value */ 953 /* Modify the temp hyst value */
956 data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG( 954 data->zone_hyst[ix == 2] = TEMP_HYST_TO_REG(
957 TEMP_FROM_REG(data->zone_low[ix], 8) - 955 TEMP_FROM_REG(data->zone_low[ix], 8) -
958 val, ix, dme1737_read(client, 956 val, ix, dme1737_read(data,
959 DME1737_REG_ZONE_HYST(ix == 2))); 957 DME1737_REG_ZONE_HYST(ix == 2)));
960 dme1737_write(client, DME1737_REG_ZONE_HYST(ix == 2), 958 dme1737_write(data, DME1737_REG_ZONE_HYST(ix == 2),
961 data->zone_hyst[ix == 2]); 959 data->zone_hyst[ix == 2]);
962 break; 960 break;
963 case SYS_ZONE_AUTO_POINT1_TEMP: 961 case SYS_ZONE_AUTO_POINT1_TEMP:
964 data->zone_low[ix] = TEMP_TO_REG(val); 962 data->zone_low[ix] = TEMP_TO_REG(val);
965 dme1737_write(client, DME1737_REG_ZONE_LOW(ix), 963 dme1737_write(data, DME1737_REG_ZONE_LOW(ix),
966 data->zone_low[ix]); 964 data->zone_low[ix]);
967 break; 965 break;
968 case SYS_ZONE_AUTO_POINT2_TEMP: 966 case SYS_ZONE_AUTO_POINT2_TEMP:
969 /* Refresh the cache */ 967 /* Refresh the cache */
970 data->zone_low[ix] = dme1737_read(client, 968 data->zone_low[ix] = dme1737_read(data,
971 DME1737_REG_ZONE_LOW(ix)); 969 DME1737_REG_ZONE_LOW(ix));
972 /* Modify the temp range value (which is stored in the upper 970 /* Modify the temp range value (which is stored in the upper
973 * nibble of the pwm_freq register) */ 971 * nibble of the pwm_freq register) */
974 data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val - 972 data->pwm_freq[ix] = TEMP_RANGE_TO_REG(val -
975 TEMP_FROM_REG(data->zone_low[ix], 8), 973 TEMP_FROM_REG(data->zone_low[ix], 8),
976 dme1737_read(client, 974 dme1737_read(data,
977 DME1737_REG_PWM_FREQ(ix))); 975 DME1737_REG_PWM_FREQ(ix)));
978 dme1737_write(client, DME1737_REG_PWM_FREQ(ix), 976 dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
979 data->pwm_freq[ix]); 977 data->pwm_freq[ix]);
980 break; 978 break;
981 case SYS_ZONE_AUTO_POINT3_TEMP: 979 case SYS_ZONE_AUTO_POINT3_TEMP:
982 data->zone_abs[ix] = TEMP_TO_REG(val); 980 data->zone_abs[ix] = TEMP_TO_REG(val);
983 dme1737_write(client, DME1737_REG_ZONE_ABS(ix), 981 dme1737_write(data, DME1737_REG_ZONE_ABS(ix),
984 data->zone_abs[ix]); 982 data->zone_abs[ix]);
985 break; 983 break;
986 default: 984 default:
@@ -1046,7 +1044,6 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
1046 const char *buf, size_t count) 1044 const char *buf, size_t count)
1047{ 1045{
1048 struct dme1737_data *data = dev_get_drvdata(dev); 1046 struct dme1737_data *data = dev_get_drvdata(dev);
1049 struct i2c_client *client = &data->client;
1050 struct sensor_device_attribute_2 1047 struct sensor_device_attribute_2
1051 *sensor_attr_2 = to_sensor_dev_attr_2(attr); 1048 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1052 int ix = sensor_attr_2->index; 1049 int ix = sensor_attr_2->index;
@@ -1060,21 +1057,21 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
1060 data->fan_min[ix] = FAN_TO_REG(val, 0); 1057 data->fan_min[ix] = FAN_TO_REG(val, 0);
1061 } else { 1058 } else {
1062 /* Refresh the cache */ 1059 /* Refresh the cache */
1063 data->fan_opt[ix] = dme1737_read(client, 1060 data->fan_opt[ix] = dme1737_read(data,
1064 DME1737_REG_FAN_OPT(ix)); 1061 DME1737_REG_FAN_OPT(ix));
1065 /* Modify the fan min value */ 1062 /* Modify the fan min value */
1066 data->fan_min[ix] = FAN_TO_REG(val, 1063 data->fan_min[ix] = FAN_TO_REG(val,
1067 FAN_TPC_FROM_REG(data->fan_opt[ix])); 1064 FAN_TPC_FROM_REG(data->fan_opt[ix]));
1068 } 1065 }
1069 dme1737_write(client, DME1737_REG_FAN_MIN(ix), 1066 dme1737_write(data, DME1737_REG_FAN_MIN(ix),
1070 data->fan_min[ix] & 0xff); 1067 data->fan_min[ix] & 0xff);
1071 dme1737_write(client, DME1737_REG_FAN_MIN(ix) + 1, 1068 dme1737_write(data, DME1737_REG_FAN_MIN(ix) + 1,
1072 data->fan_min[ix] >> 8); 1069 data->fan_min[ix] >> 8);
1073 break; 1070 break;
1074 case SYS_FAN_MAX: 1071 case SYS_FAN_MAX:
1075 /* Only valid for fan[5-6] */ 1072 /* Only valid for fan[5-6] */
1076 data->fan_max[ix - 4] = FAN_MAX_TO_REG(val); 1073 data->fan_max[ix - 4] = FAN_MAX_TO_REG(val);
1077 dme1737_write(client, DME1737_REG_FAN_MAX(ix), 1074 dme1737_write(data, DME1737_REG_FAN_MAX(ix),
1078 data->fan_max[ix - 4]); 1075 data->fan_max[ix - 4]);
1079 break; 1076 break;
1080 case SYS_FAN_TYPE: 1077 case SYS_FAN_TYPE:
@@ -1086,9 +1083,9 @@ static ssize_t set_fan(struct device *dev, struct device_attribute *attr,
1086 val); 1083 val);
1087 goto exit; 1084 goto exit;
1088 } 1085 }
1089 data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(client, 1086 data->fan_opt[ix] = FAN_TYPE_TO_REG(val, dme1737_read(data,
1090 DME1737_REG_FAN_OPT(ix))); 1087 DME1737_REG_FAN_OPT(ix)));
1091 dme1737_write(client, DME1737_REG_FAN_OPT(ix), 1088 dme1737_write(data, DME1737_REG_FAN_OPT(ix),
1092 data->fan_opt[ix]); 1089 data->fan_opt[ix]);
1093 break; 1090 break;
1094 default: 1091 default:
@@ -1185,7 +1182,6 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1185 const char *buf, size_t count) 1182 const char *buf, size_t count)
1186{ 1183{
1187 struct dme1737_data *data = dev_get_drvdata(dev); 1184 struct dme1737_data *data = dev_get_drvdata(dev);
1188 struct i2c_client *client = &data->client;
1189 struct sensor_device_attribute_2 1185 struct sensor_device_attribute_2
1190 *sensor_attr_2 = to_sensor_dev_attr_2(attr); 1186 *sensor_attr_2 = to_sensor_dev_attr_2(attr);
1191 int ix = sensor_attr_2->index; 1187 int ix = sensor_attr_2->index;
@@ -1196,12 +1192,12 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1196 switch (fn) { 1192 switch (fn) {
1197 case SYS_PWM: 1193 case SYS_PWM:
1198 data->pwm[ix] = SENSORS_LIMIT(val, 0, 255); 1194 data->pwm[ix] = SENSORS_LIMIT(val, 0, 255);
1199 dme1737_write(client, DME1737_REG_PWM(ix), data->pwm[ix]); 1195 dme1737_write(data, DME1737_REG_PWM(ix), data->pwm[ix]);
1200 break; 1196 break;
1201 case SYS_PWM_FREQ: 1197 case SYS_PWM_FREQ:
1202 data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(client, 1198 data->pwm_freq[ix] = PWM_FREQ_TO_REG(val, dme1737_read(data,
1203 DME1737_REG_PWM_FREQ(ix))); 1199 DME1737_REG_PWM_FREQ(ix)));
1204 dme1737_write(client, DME1737_REG_PWM_FREQ(ix), 1200 dme1737_write(data, DME1737_REG_PWM_FREQ(ix),
1205 data->pwm_freq[ix]); 1201 data->pwm_freq[ix]);
1206 break; 1202 break;
1207 case SYS_PWM_ENABLE: 1203 case SYS_PWM_ENABLE:
@@ -1214,7 +1210,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1214 goto exit; 1210 goto exit;
1215 } 1211 }
1216 /* Refresh the cache */ 1212 /* Refresh the cache */
1217 data->pwm_config[ix] = dme1737_read(client, 1213 data->pwm_config[ix] = dme1737_read(data,
1218 DME1737_REG_PWM_CONFIG(ix)); 1214 DME1737_REG_PWM_CONFIG(ix));
1219 if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) { 1215 if (val == PWM_EN_FROM_REG(data->pwm_config[ix])) {
1220 /* Bail out if no change */ 1216 /* Bail out if no change */
@@ -1226,14 +1222,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1226 data->pwm_acz[ix] = PWM_ACZ_FROM_REG( 1222 data->pwm_acz[ix] = PWM_ACZ_FROM_REG(
1227 data->pwm_config[ix]); 1223 data->pwm_config[ix]);
1228 /* Save the current ramp rate state and disable it */ 1224 /* Save the current ramp rate state and disable it */
1229 data->pwm_rr[ix > 0] = dme1737_read(client, 1225 data->pwm_rr[ix > 0] = dme1737_read(data,
1230 DME1737_REG_PWM_RR(ix > 0)); 1226 DME1737_REG_PWM_RR(ix > 0));
1231 data->pwm_rr_en &= ~(1 << ix); 1227 data->pwm_rr_en &= ~(1 << ix);
1232 if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) { 1228 if (PWM_RR_EN_FROM_REG(data->pwm_rr[ix > 0], ix)) {
1233 data->pwm_rr_en |= (1 << ix); 1229 data->pwm_rr_en |= (1 << ix);
1234 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix, 1230 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(0, ix,
1235 data->pwm_rr[ix > 0]); 1231 data->pwm_rr[ix > 0]);
1236 dme1737_write(client, 1232 dme1737_write(data,
1237 DME1737_REG_PWM_RR(ix > 0), 1233 DME1737_REG_PWM_RR(ix > 0),
1238 data->pwm_rr[ix > 0]); 1234 data->pwm_rr[ix > 0]);
1239 } 1235 }
@@ -1247,14 +1243,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1247 /* Turn fan fully on */ 1243 /* Turn fan fully on */
1248 data->pwm_config[ix] = PWM_EN_TO_REG(0, 1244 data->pwm_config[ix] = PWM_EN_TO_REG(0,
1249 data->pwm_config[ix]); 1245 data->pwm_config[ix]);
1250 dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 1246 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1251 data->pwm_config[ix]); 1247 data->pwm_config[ix]);
1252 break; 1248 break;
1253 case 1: 1249 case 1:
1254 /* Turn on manual mode */ 1250 /* Turn on manual mode */
1255 data->pwm_config[ix] = PWM_EN_TO_REG(1, 1251 data->pwm_config[ix] = PWM_EN_TO_REG(1,
1256 data->pwm_config[ix]); 1252 data->pwm_config[ix]);
1257 dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 1253 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1258 data->pwm_config[ix]); 1254 data->pwm_config[ix]);
1259 /* Change permissions of pwm[ix] to read-writeable */ 1255 /* Change permissions of pwm[ix] to read-writeable */
1260 dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix], 1256 dme1737_chmod_file(dev, dme1737_pwm_chmod_attr[ix],
@@ -1269,14 +1265,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1269 data->pwm_config[ix] = PWM_ACZ_TO_REG( 1265 data->pwm_config[ix] = PWM_ACZ_TO_REG(
1270 data->pwm_acz[ix], 1266 data->pwm_acz[ix],
1271 data->pwm_config[ix]); 1267 data->pwm_config[ix]);
1272 dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 1268 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1273 data->pwm_config[ix]); 1269 data->pwm_config[ix]);
1274 /* Enable PWM ramp rate if previously enabled */ 1270 /* Enable PWM ramp rate if previously enabled */
1275 if (data->pwm_rr_en & (1 << ix)) { 1271 if (data->pwm_rr_en & (1 << ix)) {
1276 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix, 1272 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(1, ix,
1277 dme1737_read(client, 1273 dme1737_read(data,
1278 DME1737_REG_PWM_RR(ix > 0))); 1274 DME1737_REG_PWM_RR(ix > 0)));
1279 dme1737_write(client, 1275 dme1737_write(data,
1280 DME1737_REG_PWM_RR(ix > 0), 1276 DME1737_REG_PWM_RR(ix > 0),
1281 data->pwm_rr[ix > 0]); 1277 data->pwm_rr[ix > 0]);
1282 } 1278 }
@@ -1286,9 +1282,9 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1286 case SYS_PWM_RAMP_RATE: 1282 case SYS_PWM_RAMP_RATE:
1287 /* Only valid for pwm[1-3] */ 1283 /* Only valid for pwm[1-3] */
1288 /* Refresh the cache */ 1284 /* Refresh the cache */
1289 data->pwm_config[ix] = dme1737_read(client, 1285 data->pwm_config[ix] = dme1737_read(data,
1290 DME1737_REG_PWM_CONFIG(ix)); 1286 DME1737_REG_PWM_CONFIG(ix));
1291 data->pwm_rr[ix > 0] = dme1737_read(client, 1287 data->pwm_rr[ix > 0] = dme1737_read(data,
1292 DME1737_REG_PWM_RR(ix > 0)); 1288 DME1737_REG_PWM_RR(ix > 0));
1293 /* Set the ramp rate value */ 1289 /* Set the ramp rate value */
1294 if (val > 0) { 1290 if (val > 0) {
@@ -1301,7 +1297,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1301 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix, 1297 data->pwm_rr[ix > 0] = PWM_RR_EN_TO_REG(val > 0, ix,
1302 data->pwm_rr[ix > 0]); 1298 data->pwm_rr[ix > 0]);
1303 } 1299 }
1304 dme1737_write(client, DME1737_REG_PWM_RR(ix > 0), 1300 dme1737_write(data, DME1737_REG_PWM_RR(ix > 0),
1305 data->pwm_rr[ix > 0]); 1301 data->pwm_rr[ix > 0]);
1306 break; 1302 break;
1307 case SYS_PWM_AUTO_CHANNELS_ZONE: 1303 case SYS_PWM_AUTO_CHANNELS_ZONE:
@@ -1315,14 +1311,14 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1315 goto exit; 1311 goto exit;
1316 } 1312 }
1317 /* Refresh the cache */ 1313 /* Refresh the cache */
1318 data->pwm_config[ix] = dme1737_read(client, 1314 data->pwm_config[ix] = dme1737_read(data,
1319 DME1737_REG_PWM_CONFIG(ix)); 1315 DME1737_REG_PWM_CONFIG(ix));
1320 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) { 1316 if (PWM_EN_FROM_REG(data->pwm_config[ix]) == 2) {
1321 /* PWM is already in auto mode so update the temp 1317 /* PWM is already in auto mode so update the temp
1322 * channel assignment */ 1318 * channel assignment */
1323 data->pwm_config[ix] = PWM_ACZ_TO_REG(val, 1319 data->pwm_config[ix] = PWM_ACZ_TO_REG(val,
1324 data->pwm_config[ix]); 1320 data->pwm_config[ix]);
1325 dme1737_write(client, DME1737_REG_PWM_CONFIG(ix), 1321 dme1737_write(data, DME1737_REG_PWM_CONFIG(ix),
1326 data->pwm_config[ix]); 1322 data->pwm_config[ix]);
1327 } else { 1323 } else {
1328 /* PWM is not in auto mode so we save the temp 1324 /* PWM is not in auto mode so we save the temp
@@ -1333,7 +1329,7 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1333 case SYS_PWM_AUTO_PWM_MIN: 1329 case SYS_PWM_AUTO_PWM_MIN:
1334 /* Only valid for pwm[1-3] */ 1330 /* Only valid for pwm[1-3] */
1335 /* Refresh the cache */ 1331 /* Refresh the cache */
1336 data->pwm_min[ix] = dme1737_read(client, 1332 data->pwm_min[ix] = dme1737_read(data,
1337 DME1737_REG_PWM_MIN(ix)); 1333 DME1737_REG_PWM_MIN(ix));
1338 /* There are only 2 values supported for the auto_pwm_min 1334 /* There are only 2 values supported for the auto_pwm_min
1339 * value: 0 or auto_point1_pwm. So if the temperature drops 1335 * value: 0 or auto_point1_pwm. So if the temperature drops
@@ -1341,20 +1337,20 @@ static ssize_t set_pwm(struct device *dev, struct device_attribute *attr,
1341 * off or runs at auto_point1_pwm duty-cycle. */ 1337 * off or runs at auto_point1_pwm duty-cycle. */
1342 if (val > ((data->pwm_min[ix] + 1) / 2)) { 1338 if (val > ((data->pwm_min[ix] + 1) / 2)) {
1343 data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix, 1339 data->pwm_rr[0] = PWM_OFF_TO_REG(1, ix,
1344 dme1737_read(client, 1340 dme1737_read(data,
1345 DME1737_REG_PWM_RR(0))); 1341 DME1737_REG_PWM_RR(0)));
1346 } else { 1342 } else {
1347 data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix, 1343 data->pwm_rr[0] = PWM_OFF_TO_REG(0, ix,
1348 dme1737_read(client, 1344 dme1737_read(data,
1349 DME1737_REG_PWM_RR(0))); 1345 DME1737_REG_PWM_RR(0)));
1350 } 1346 }
1351 dme1737_write(client, DME1737_REG_PWM_RR(0), 1347 dme1737_write(data, DME1737_REG_PWM_RR(0),
1352 data->pwm_rr[0]); 1348 data->pwm_rr[0]);
1353 break; 1349 break;
1354 case SYS_PWM_AUTO_POINT1_PWM: 1350 case SYS_PWM_AUTO_POINT1_PWM:
1355 /* Only valid for pwm[1-3] */ 1351 /* Only valid for pwm[1-3] */
1356 data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255); 1352 data->pwm_min[ix] = SENSORS_LIMIT(val, 0, 255);
1357 dme1737_write(client, DME1737_REG_PWM_MIN(ix), 1353 dme1737_write(data, DME1737_REG_PWM_MIN(ix),
1358 data->pwm_min[ix]); 1354 data->pwm_min[ix]);
1359 break; 1355 break;
1360 default: 1356 default:
@@ -1402,7 +1398,7 @@ static ssize_t show_name(struct device *dev, struct device_attribute *attr,
1402{ 1398{
1403 struct dme1737_data *data = dev_get_drvdata(dev); 1399 struct dme1737_data *data = dev_get_drvdata(dev);
1404 1400
1405 return sprintf(buf, "%s\n", data->client.name); 1401 return sprintf(buf, "%s\n", data->name);
1406} 1402}
1407 1403
1408/* --------------------------------------------------------------------- 1404/* ---------------------------------------------------------------------
@@ -1908,7 +1904,7 @@ static void dme1737_remove_files(struct device *dev)
1908 1904
1909 sysfs_remove_group(&dev->kobj, &dme1737_group); 1905 sysfs_remove_group(&dev->kobj, &dme1737_group);
1910 1906
1911 if (!data->client.driver) { 1907 if (!data->client) {
1912 sysfs_remove_file(&dev->kobj, &dev_attr_name.attr); 1908 sysfs_remove_file(&dev->kobj, &dev_attr_name.attr);
1913 } 1909 }
1914} 1910}
@@ -1919,7 +1915,7 @@ static int dme1737_create_files(struct device *dev)
1919 int err, ix; 1915 int err, ix;
1920 1916
1921 /* Create a name attribute for ISA devices */ 1917 /* Create a name attribute for ISA devices */
1922 if (!data->client.driver && 1918 if (!data->client &&
1923 (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) { 1919 (err = sysfs_create_file(&dev->kobj, &dev_attr_name.attr))) {
1924 goto exit; 1920 goto exit;
1925 } 1921 }
@@ -2013,14 +2009,14 @@ exit:
2013static int dme1737_init_device(struct device *dev) 2009static int dme1737_init_device(struct device *dev)
2014{ 2010{
2015 struct dme1737_data *data = dev_get_drvdata(dev); 2011 struct dme1737_data *data = dev_get_drvdata(dev);
2016 struct i2c_client *client = &data->client; 2012 struct i2c_client *client = data->client;
2017 int ix; 2013 int ix;
2018 u8 reg; 2014 u8 reg;
2019 2015
2020 /* Point to the right nominal voltages array */ 2016 /* Point to the right nominal voltages array */
2021 data->in_nominal = IN_NOMINAL(data->type); 2017 data->in_nominal = IN_NOMINAL(data->type);
2022 2018
2023 data->config = dme1737_read(client, DME1737_REG_CONFIG); 2019 data->config = dme1737_read(data, DME1737_REG_CONFIG);
2024 /* Inform if part is not monitoring/started */ 2020 /* Inform if part is not monitoring/started */
2025 if (!(data->config & 0x01)) { 2021 if (!(data->config & 0x01)) {
2026 if (!force_start) { 2022 if (!force_start) {
@@ -2032,7 +2028,7 @@ static int dme1737_init_device(struct device *dev)
2032 2028
2033 /* Force monitoring */ 2029 /* Force monitoring */
2034 data->config |= 0x01; 2030 data->config |= 0x01;
2035 dme1737_write(client, DME1737_REG_CONFIG, data->config); 2031 dme1737_write(data, DME1737_REG_CONFIG, data->config);
2036 } 2032 }
2037 /* Inform if part is not ready */ 2033 /* Inform if part is not ready */
2038 if (!(data->config & 0x04)) { 2034 if (!(data->config & 0x04)) {
@@ -2041,8 +2037,8 @@ static int dme1737_init_device(struct device *dev)
2041 } 2037 }
2042 2038
2043 /* Determine which optional fan and pwm features are enabled/present */ 2039 /* Determine which optional fan and pwm features are enabled/present */
2044 if (client->driver) { /* I2C chip */ 2040 if (client) { /* I2C chip */
2045 data->config2 = dme1737_read(client, DME1737_REG_CONFIG2); 2041 data->config2 = dme1737_read(data, DME1737_REG_CONFIG2);
2046 /* Check if optional fan3 input is enabled */ 2042 /* Check if optional fan3 input is enabled */
2047 if (data->config2 & 0x04) { 2043 if (data->config2 & 0x04) {
2048 data->has_fan |= (1 << 2); 2044 data->has_fan |= (1 << 2);
@@ -2051,7 +2047,7 @@ static int dme1737_init_device(struct device *dev)
2051 /* Fan4 and pwm3 are only available if the client's I2C address 2047 /* Fan4 and pwm3 are only available if the client's I2C address
2052 * is the default 0x2e. Otherwise the I/Os associated with 2048 * is the default 0x2e. Otherwise the I/Os associated with
2053 * these functions are used for addr enable/select. */ 2049 * these functions are used for addr enable/select. */
2054 if (data->client.addr == 0x2e) { 2050 if (client->addr == 0x2e) {
2055 data->has_fan |= (1 << 3); 2051 data->has_fan |= (1 << 3);
2056 data->has_pwm |= (1 << 2); 2052 data->has_pwm |= (1 << 2);
2057 } 2053 }
@@ -2086,16 +2082,16 @@ static int dme1737_init_device(struct device *dev)
2086 (data->has_fan & (1 << 4)) ? "yes" : "no", 2082 (data->has_fan & (1 << 4)) ? "yes" : "no",
2087 (data->has_fan & (1 << 5)) ? "yes" : "no"); 2083 (data->has_fan & (1 << 5)) ? "yes" : "no");
2088 2084
2089 reg = dme1737_read(client, DME1737_REG_TACH_PWM); 2085 reg = dme1737_read(data, DME1737_REG_TACH_PWM);
2090 /* Inform if fan-to-pwm mapping differs from the default */ 2086 /* Inform if fan-to-pwm mapping differs from the default */
2091 if (client->driver && reg != 0xa4) { /* I2C chip */ 2087 if (client && reg != 0xa4) { /* I2C chip */
2092 dev_warn(dev, "Non-standard fan to pwm mapping: " 2088 dev_warn(dev, "Non-standard fan to pwm mapping: "
2093 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, " 2089 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d, "
2094 "fan4->pwm%d. Please report to the driver " 2090 "fan4->pwm%d. Please report to the driver "
2095 "maintainer.\n", 2091 "maintainer.\n",
2096 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1, 2092 (reg & 0x03) + 1, ((reg >> 2) & 0x03) + 1,
2097 ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1); 2093 ((reg >> 4) & 0x03) + 1, ((reg >> 6) & 0x03) + 1);
2098 } else if (!client->driver && reg != 0x24) { /* ISA chip */ 2094 } else if (!client && reg != 0x24) { /* ISA chip */
2099 dev_warn(dev, "Non-standard fan to pwm mapping: " 2095 dev_warn(dev, "Non-standard fan to pwm mapping: "
2100 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. " 2096 "fan1->pwm%d, fan2->pwm%d, fan3->pwm%d. "
2101 "Please report to the driver maintainer.\n", 2097 "Please report to the driver maintainer.\n",
@@ -2108,7 +2104,7 @@ static int dme1737_init_device(struct device *dev)
2108 * disabled). */ 2104 * disabled). */
2109 if (!(data->config & 0x02)) { 2105 if (!(data->config & 0x02)) {
2110 for (ix = 0; ix < 3; ix++) { 2106 for (ix = 0; ix < 3; ix++) {
2111 data->pwm_config[ix] = dme1737_read(client, 2107 data->pwm_config[ix] = dme1737_read(data,
2112 DME1737_REG_PWM_CONFIG(ix)); 2108 DME1737_REG_PWM_CONFIG(ix));
2113 if ((data->has_pwm & (1 << ix)) && 2109 if ((data->has_pwm & (1 << ix)) &&
2114 (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) { 2110 (PWM_EN_FROM_REG(data->pwm_config[ix]) == -1)) {
@@ -2116,8 +2112,8 @@ static int dme1737_init_device(struct device *dev)
2116 "manual mode.\n", ix + 1); 2112 "manual mode.\n", ix + 1);
2117 data->pwm_config[ix] = PWM_EN_TO_REG(1, 2113 data->pwm_config[ix] = PWM_EN_TO_REG(1,
2118 data->pwm_config[ix]); 2114 data->pwm_config[ix]);
2119 dme1737_write(client, DME1737_REG_PWM(ix), 0); 2115 dme1737_write(data, DME1737_REG_PWM(ix), 0);
2120 dme1737_write(client, 2116 dme1737_write(data,
2121 DME1737_REG_PWM_CONFIG(ix), 2117 DME1737_REG_PWM_CONFIG(ix),
2122 data->pwm_config[ix]); 2118 data->pwm_config[ix]);
2123 } 2119 }
@@ -2191,37 +2187,24 @@ exit:
2191 return err; 2187 return err;
2192} 2188}
2193 2189
2194static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address, 2190/* Return 0 if detection is successful, -ENODEV otherwise */
2195 int kind) 2191static int dme1737_i2c_detect(struct i2c_client *client, int kind,
2192 struct i2c_board_info *info)
2196{ 2193{
2194 struct i2c_adapter *adapter = client->adapter;
2195 struct device *dev = &adapter->dev;
2197 u8 company, verstep = 0; 2196 u8 company, verstep = 0;
2198 struct i2c_client *client;
2199 struct dme1737_data *data;
2200 struct device *dev;
2201 int err = 0;
2202 const char *name; 2197 const char *name;
2203 2198
2204 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) { 2199 if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_BYTE_DATA)) {
2205 goto exit; 2200 return -ENODEV;
2206 }
2207
2208 if (!(data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL))) {
2209 err = -ENOMEM;
2210 goto exit;
2211 } 2201 }
2212 2202
2213 client = &data->client;
2214 i2c_set_clientdata(client, data);
2215 client->addr = address;
2216 client->adapter = adapter;
2217 client->driver = &dme1737_i2c_driver;
2218 dev = &client->dev;
2219
2220 /* A negative kind means that the driver was loaded with no force 2203 /* A negative kind means that the driver was loaded with no force
2221 * parameter (default), so we must identify the chip. */ 2204 * parameter (default), so we must identify the chip. */
2222 if (kind < 0) { 2205 if (kind < 0) {
2223 company = dme1737_read(client, DME1737_REG_COMPANY); 2206 company = i2c_smbus_read_byte_data(client, DME1737_REG_COMPANY);
2224 verstep = dme1737_read(client, DME1737_REG_VERSTEP); 2207 verstep = i2c_smbus_read_byte_data(client, DME1737_REG_VERSTEP);
2225 2208
2226 if (company == DME1737_COMPANY_SMSC && 2209 if (company == DME1737_COMPANY_SMSC &&
2227 (verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) { 2210 (verstep & DME1737_VERSTEP_MASK) == DME1737_VERSTEP) {
@@ -2230,8 +2213,7 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
2230 verstep == SCH5027_VERSTEP) { 2213 verstep == SCH5027_VERSTEP) {
2231 kind = sch5027; 2214 kind = sch5027;
2232 } else { 2215 } else {
2233 err = -ENODEV; 2216 return -ENODEV;
2234 goto exit_kfree;
2235 } 2217 }
2236 } 2218 }
2237 2219
@@ -2241,32 +2223,44 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
2241 kind = dme1737; 2223 kind = dme1737;
2242 name = "dme1737"; 2224 name = "dme1737";
2243 } 2225 }
2244 data->type = kind;
2245
2246 /* Fill in the remaining client fields and put it into the global
2247 * list */
2248 strlcpy(client->name, name, I2C_NAME_SIZE);
2249 mutex_init(&data->update_lock);
2250
2251 /* Tell the I2C layer a new client has arrived */
2252 if ((err = i2c_attach_client(client))) {
2253 goto exit_kfree;
2254 }
2255 2226
2256 dev_info(dev, "Found a %s chip at 0x%02x (rev 0x%02x).\n", 2227 dev_info(dev, "Found a %s chip at 0x%02x (rev 0x%02x).\n",
2257 kind == sch5027 ? "SCH5027" : "DME1737", client->addr, 2228 kind == sch5027 ? "SCH5027" : "DME1737", client->addr,
2258 verstep); 2229 verstep);
2230 strlcpy(info->type, name, I2C_NAME_SIZE);
2231
2232 return 0;
2233}
2234
2235static int dme1737_i2c_probe(struct i2c_client *client,
2236 const struct i2c_device_id *id)
2237{
2238 struct dme1737_data *data;
2239 struct device *dev = &client->dev;
2240 int err;
2241
2242 data = kzalloc(sizeof(struct dme1737_data), GFP_KERNEL);
2243 if (!data) {
2244 err = -ENOMEM;
2245 goto exit;
2246 }
2247
2248 i2c_set_clientdata(client, data);
2249 data->type = id->driver_data;
2250 data->client = client;
2251 data->name = client->name;
2252 mutex_init(&data->update_lock);
2259 2253
2260 /* Initialize the DME1737 chip */ 2254 /* Initialize the DME1737 chip */
2261 if ((err = dme1737_init_device(dev))) { 2255 if ((err = dme1737_init_device(dev))) {
2262 dev_err(dev, "Failed to initialize device.\n"); 2256 dev_err(dev, "Failed to initialize device.\n");
2263 goto exit_detach; 2257 goto exit_kfree;
2264 } 2258 }
2265 2259
2266 /* Create sysfs files */ 2260 /* Create sysfs files */
2267 if ((err = dme1737_create_files(dev))) { 2261 if ((err = dme1737_create_files(dev))) {
2268 dev_err(dev, "Failed to create sysfs files.\n"); 2262 dev_err(dev, "Failed to create sysfs files.\n");
2269 goto exit_detach; 2263 goto exit_kfree;
2270 } 2264 }
2271 2265
2272 /* Register device */ 2266 /* Register device */
@@ -2281,45 +2275,40 @@ static int dme1737_i2c_detect(struct i2c_adapter *adapter, int address,
2281 2275
2282exit_remove: 2276exit_remove:
2283 dme1737_remove_files(dev); 2277 dme1737_remove_files(dev);
2284exit_detach:
2285 i2c_detach_client(client);
2286exit_kfree: 2278exit_kfree:
2287 kfree(data); 2279 kfree(data);
2288exit: 2280exit:
2289 return err; 2281 return err;
2290} 2282}
2291 2283
2292static int dme1737_i2c_attach_adapter(struct i2c_adapter *adapter) 2284static int dme1737_i2c_remove(struct i2c_client *client)
2293{
2294 if (!(adapter->class & I2C_CLASS_HWMON)) {
2295 return 0;
2296 }
2297
2298 return i2c_probe(adapter, &addr_data, dme1737_i2c_detect);
2299}
2300
2301static int dme1737_i2c_detach_client(struct i2c_client *client)
2302{ 2285{
2303 struct dme1737_data *data = i2c_get_clientdata(client); 2286 struct dme1737_data *data = i2c_get_clientdata(client);
2304 int err;
2305 2287
2306 hwmon_device_unregister(data->hwmon_dev); 2288 hwmon_device_unregister(data->hwmon_dev);
2307 dme1737_remove_files(&client->dev); 2289 dme1737_remove_files(&client->dev);
2308 2290
2309 if ((err = i2c_detach_client(client))) {
2310 return err;
2311 }
2312
2313 kfree(data); 2291 kfree(data);
2314 return 0; 2292 return 0;
2315} 2293}
2316 2294
2295static const struct i2c_device_id dme1737_id[] = {
2296 { "dme1737", dme1737 },
2297 { "sch5027", sch5027 },
2298 { }
2299};
2300MODULE_DEVICE_TABLE(i2c, dme1737_id);
2301
2317static struct i2c_driver dme1737_i2c_driver = { 2302static struct i2c_driver dme1737_i2c_driver = {
2303 .class = I2C_CLASS_HWMON,
2318 .driver = { 2304 .driver = {
2319 .name = "dme1737", 2305 .name = "dme1737",
2320 }, 2306 },
2321 .attach_adapter = dme1737_i2c_attach_adapter, 2307 .probe = dme1737_i2c_probe,
2322 .detach_client = dme1737_i2c_detach_client, 2308 .remove = dme1737_i2c_remove,
2309 .id_table = dme1737_id,
2310 .detect = dme1737_i2c_detect,
2311 .address_data = &addr_data,
2323}; 2312};
2324 2313
2325/* --------------------------------------------------------------------- 2314/* ---------------------------------------------------------------------
@@ -2403,7 +2392,6 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
2403{ 2392{
2404 u8 company, device; 2393 u8 company, device;
2405 struct resource *res; 2394 struct resource *res;
2406 struct i2c_client *client;
2407 struct dme1737_data *data; 2395 struct dme1737_data *data;
2408 struct device *dev = &pdev->dev; 2396 struct device *dev = &pdev->dev;
2409 int err; 2397 int err;
@@ -2422,15 +2410,13 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
2422 goto exit_release_region; 2410 goto exit_release_region;
2423 } 2411 }
2424 2412
2425 client = &data->client; 2413 data->addr = res->start;
2426 i2c_set_clientdata(client, data);
2427 client->addr = res->start;
2428 platform_set_drvdata(pdev, data); 2414 platform_set_drvdata(pdev, data);
2429 2415
2430 /* Skip chip detection if module is loaded with force_id parameter */ 2416 /* Skip chip detection if module is loaded with force_id parameter */
2431 if (!force_id) { 2417 if (!force_id) {
2432 company = dme1737_read(client, DME1737_REG_COMPANY); 2418 company = dme1737_read(data, DME1737_REG_COMPANY);
2433 device = dme1737_read(client, DME1737_REG_DEVICE); 2419 device = dme1737_read(data, DME1737_REG_DEVICE);
2434 2420
2435 if (!((company == DME1737_COMPANY_SMSC) && 2421 if (!((company == DME1737_COMPANY_SMSC) &&
2436 (device == SCH311X_DEVICE))) { 2422 (device == SCH311X_DEVICE))) {
@@ -2441,10 +2427,10 @@ static int __devinit dme1737_isa_probe(struct platform_device *pdev)
2441 data->type = sch311x; 2427 data->type = sch311x;
2442 2428
2443 /* Fill in the remaining client fields and initialize the mutex */ 2429 /* Fill in the remaining client fields and initialize the mutex */
2444 strlcpy(client->name, "sch311x", I2C_NAME_SIZE); 2430 data->name = "sch311x";
2445 mutex_init(&data->update_lock); 2431 mutex_init(&data->update_lock);
2446 2432
2447 dev_info(dev, "Found a SCH311x chip at 0x%04x\n", client->addr); 2433 dev_info(dev, "Found a SCH311x chip at 0x%04x\n", data->addr);
2448 2434
2449 /* Initialize the chip */ 2435 /* Initialize the chip */
2450 if ((err = dme1737_init_device(dev))) { 2436 if ((err = dme1737_init_device(dev))) {
@@ -2485,7 +2471,7 @@ static int __devexit dme1737_isa_remove(struct platform_device *pdev)
2485 2471
2486 hwmon_device_unregister(data->hwmon_dev); 2472 hwmon_device_unregister(data->hwmon_dev);
2487 dme1737_remove_files(&pdev->dev); 2473 dme1737_remove_files(&pdev->dev);
2488 release_region(data->client.addr, DME1737_EXTENT); 2474 release_region(data->addr, DME1737_EXTENT);
2489 platform_set_drvdata(pdev, NULL); 2475 platform_set_drvdata(pdev, NULL);
2490 kfree(data); 2476 kfree(data);
2491 2477
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 6ee997b2817c..acadbc51fc0f 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -55,7 +55,7 @@ config I2C_AMD756
55 55
56config I2C_AMD756_S4882 56config I2C_AMD756_S4882
57 tristate "SMBus multiplexing on the Tyan S4882" 57 tristate "SMBus multiplexing on the Tyan S4882"
58 depends on I2C_AMD756 && EXPERIMENTAL 58 depends on I2C_AMD756 && X86 && EXPERIMENTAL
59 help 59 help
60 Enabling this option will add specific SMBus support for the Tyan 60 Enabling this option will add specific SMBus support for the Tyan
61 S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed 61 S4882 motherboard. On this 4-CPU board, the SMBus is multiplexed
@@ -148,7 +148,7 @@ config I2C_NFORCE2
148 148
149config I2C_NFORCE2_S4985 149config I2C_NFORCE2_S4985
150 tristate "SMBus multiplexing on the Tyan S4985" 150 tristate "SMBus multiplexing on the Tyan S4985"
151 depends on I2C_NFORCE2 && EXPERIMENTAL 151 depends on I2C_NFORCE2 && X86 && EXPERIMENTAL
152 help 152 help
153 Enabling this option will add specific SMBus support for the Tyan 153 Enabling this option will add specific SMBus support for the Tyan
154 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed 154 S4985 motherboard. On this 4-CPU board, the SMBus is multiplexed
@@ -209,7 +209,7 @@ config I2C_VIA
209 will be called i2c-via. 209 will be called i2c-via.
210 210
211config I2C_VIAPRO 211config I2C_VIAPRO
212 tristate "VIA VT82C596/82C686/82xx and CX700" 212 tristate "VIA VT82C596/82C686/82xx and CX700/VX800/VX820"
213 depends on PCI 213 depends on PCI
214 help 214 help
215 If you say yes to this option, support will be included for the VIA 215 If you say yes to this option, support will be included for the VIA
@@ -223,6 +223,8 @@ config I2C_VIAPRO
223 VT8237R/A/S 223 VT8237R/A/S
224 VT8251 224 VT8251
225 CX700 225 CX700
226 VX800
227 VX820
226 228
227 This driver can also be built as a module. If so, the module 229 This driver can also be built as a module. If so, the module
228 will be called i2c-viapro. 230 will be called i2c-viapro.
@@ -330,6 +332,18 @@ config I2C_GPIO
330 This is a very simple bitbanging I2C driver utilizing the 332 This is a very simple bitbanging I2C driver utilizing the
331 arch-neutral GPIO API to control the SCL and SDA lines. 333 arch-neutral GPIO API to control the SCL and SDA lines.
332 334
335config I2C_HIGHLANDER
336 tristate "Highlander FPGA SMBus interface"
337 depends on SH_HIGHLANDER
338 help
339 If you say yes to this option, support will be included for
340 the SMBus interface located in the FPGA on various Highlander
341 boards, particularly the R0P7780LC0011RL and R0P7785LC0011RL
342 FPGAs. This is wholly unrelated to the SoC I2C.
343
344 This driver can also be built as a module. If so, the module
345 will be called i2c-highlander.
346
333config I2C_IBM_IIC 347config I2C_IBM_IIC
334 tristate "IBM PPC 4xx on-chip I2C interface" 348 tristate "IBM PPC 4xx on-chip I2C interface"
335 depends on 4xx 349 depends on 4xx
diff --git a/drivers/i2c/busses/Makefile b/drivers/i2c/busses/Makefile
index 97dbfa2107fe..0c2c4b26cdf1 100644
--- a/drivers/i2c/busses/Makefile
+++ b/drivers/i2c/busses/Makefile
@@ -31,6 +31,7 @@ obj-$(CONFIG_I2C_BLACKFIN_TWI) += i2c-bfin-twi.o
31obj-$(CONFIG_I2C_CPM) += i2c-cpm.o 31obj-$(CONFIG_I2C_CPM) += i2c-cpm.o
32obj-$(CONFIG_I2C_DAVINCI) += i2c-davinci.o 32obj-$(CONFIG_I2C_DAVINCI) += i2c-davinci.o
33obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o 33obj-$(CONFIG_I2C_GPIO) += i2c-gpio.o
34obj-$(CONFIG_I2C_HIGHLANDER) += i2c-highlander.o
34obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o 35obj-$(CONFIG_I2C_IBM_IIC) += i2c-ibm_iic.o
35obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o 36obj-$(CONFIG_I2C_IOP3XX) += i2c-iop3xx.o
36obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o 37obj-$(CONFIG_I2C_IXP2000) += i2c-ixp2000.o
diff --git a/drivers/i2c/busses/i2c-highlander.c b/drivers/i2c/busses/i2c-highlander.c
new file mode 100644
index 000000000000..f4d22ae9d294
--- /dev/null
+++ b/drivers/i2c/busses/i2c-highlander.c
@@ -0,0 +1,498 @@
1/*
2 * Renesas Solutions Highlander FPGA I2C/SMBus support.
3 *
4 * Supported devices: R0P7780LC0011RL, R0P7785LC0011RL
5 *
6 * Copyright (C) 2008 Paul Mundt
7 * Copyright (C) 2008 Renesas Solutions Corp.
8 * Copyright (C) 2008 Atom Create Engineering Co., Ltd.
9 *
10 * This file is subject to the terms and conditions of the GNU General
11 * Public License version 2. See the file "COPYING" in the main directory
12 * of this archive for more details.
13 */
14#include <linux/module.h>
15#include <linux/init.h>
16#include <linux/interrupt.h>
17#include <linux/i2c.h>
18#include <linux/platform_device.h>
19#include <linux/completion.h>
20#include <linux/io.h>
21#include <linux/delay.h>
22
23#define SMCR 0x00
24#define SMCR_START (1 << 0)
25#define SMCR_IRIC (1 << 1)
26#define SMCR_BBSY (1 << 2)
27#define SMCR_ACKE (1 << 3)
28#define SMCR_RST (1 << 4)
29#define SMCR_IEIC (1 << 6)
30
31#define SMSMADR 0x02
32
33#define SMMR 0x04
34#define SMMR_MODE0 (1 << 0)
35#define SMMR_MODE1 (1 << 1)
36#define SMMR_CAP (1 << 3)
37#define SMMR_TMMD (1 << 4)
38#define SMMR_SP (1 << 7)
39
40#define SMSADR 0x06
41#define SMTRDR 0x46
42
43struct highlander_i2c_dev {
44 struct device *dev;
45 void __iomem *base;
46 struct i2c_adapter adapter;
47 struct completion cmd_complete;
48 unsigned long last_read_time;
49 int irq;
50 u8 *buf;
51 size_t buf_len;
52};
53
54static int iic_force_poll, iic_force_normal;
55static int iic_timeout = 1000, iic_read_delay;
56
57static inline void highlander_i2c_irq_enable(struct highlander_i2c_dev *dev)
58{
59 iowrite16(ioread16(dev->base + SMCR) | SMCR_IEIC, dev->base + SMCR);
60}
61
62static inline void highlander_i2c_irq_disable(struct highlander_i2c_dev *dev)
63{
64 iowrite16(ioread16(dev->base + SMCR) & ~SMCR_IEIC, dev->base + SMCR);
65}
66
67static inline void highlander_i2c_start(struct highlander_i2c_dev *dev)
68{
69 iowrite16(ioread16(dev->base + SMCR) | SMCR_START, dev->base + SMCR);
70}
71
72static inline void highlander_i2c_done(struct highlander_i2c_dev *dev)
73{
74 iowrite16(ioread16(dev->base + SMCR) | SMCR_IRIC, dev->base + SMCR);
75}
76
77static void highlander_i2c_setup(struct highlander_i2c_dev *dev)
78{
79 u16 smmr;
80
81 smmr = ioread16(dev->base + SMMR);
82 smmr |= SMMR_TMMD;
83
84 if (iic_force_normal)
85 smmr &= ~SMMR_SP;
86 else
87 smmr |= SMMR_SP;
88
89 iowrite16(smmr, dev->base + SMMR);
90}
91
92static void smbus_write_data(u8 *src, u16 *dst, int len)
93{
94 for (; len > 1; len -= 2) {
95 *dst++ = be16_to_cpup((u16 *)src);
96 src += 2;
97 }
98
99 if (len)
100 *dst = *src << 8;
101}
102
103static void smbus_read_data(u16 *src, u8 *dst, int len)
104{
105 for (; len > 1; len -= 2) {
106 *(u16 *)dst = cpu_to_be16p(src++);
107 dst += 2;
108 }
109
110 if (len)
111 *dst = *src >> 8;
112}
113
114static void highlander_i2c_command(struct highlander_i2c_dev *dev,
115 u8 command, int len)
116{
117 unsigned int i;
118 u16 cmd = (command << 8) | command;
119
120 for (i = 0; i < len; i += 2) {
121 if (len - i == 1)
122 cmd = command << 8;
123 iowrite16(cmd, dev->base + SMSADR + i);
124 dev_dbg(dev->dev, "command data[%x] 0x%04x\n", i/2, cmd);
125 }
126}
127
128static int highlander_i2c_wait_for_bbsy(struct highlander_i2c_dev *dev)
129{
130 unsigned long timeout;
131
132 timeout = jiffies + msecs_to_jiffies(iic_timeout);
133 while (ioread16(dev->base + SMCR) & SMCR_BBSY) {
134 if (time_after(jiffies, timeout)) {
135 dev_warn(dev->dev, "timeout waiting for bus ready\n");
136 return -ETIMEDOUT;
137 }
138
139 msleep(1);
140 }
141
142 return 0;
143}
144
145static int highlander_i2c_reset(struct highlander_i2c_dev *dev)
146{
147 iowrite16(ioread16(dev->base + SMCR) | SMCR_RST, dev->base + SMCR);
148 return highlander_i2c_wait_for_bbsy(dev);
149}
150
151static int highlander_i2c_wait_for_ack(struct highlander_i2c_dev *dev)
152{
153 u16 tmp = ioread16(dev->base + SMCR);
154
155 if ((tmp & (SMCR_IRIC | SMCR_ACKE)) == SMCR_ACKE) {
156 dev_warn(dev->dev, "ack abnormality\n");
157 return highlander_i2c_reset(dev);
158 }
159
160 return 0;
161}
162
163static irqreturn_t highlander_i2c_irq(int irq, void *dev_id)
164{
165 struct highlander_i2c_dev *dev = dev_id;
166
167 highlander_i2c_done(dev);
168 complete(&dev->cmd_complete);
169
170 return IRQ_HANDLED;
171}
172
173static void highlander_i2c_poll(struct highlander_i2c_dev *dev)
174{
175 unsigned long timeout;
176 u16 smcr;
177
178 timeout = jiffies + msecs_to_jiffies(iic_timeout);
179 for (;;) {
180 smcr = ioread16(dev->base + SMCR);
181
182 /*
183 * Don't bother checking ACKE here, this and the reset
184 * are handled in highlander_i2c_wait_xfer_done() when
185 * waiting for the ACK.
186 */
187
188 if (smcr & SMCR_IRIC)
189 return;
190 if (time_after(jiffies, timeout))
191 break;
192
193 cpu_relax();
194 cond_resched();
195 }
196
197 dev_err(dev->dev, "polling timed out\n");
198}
199
200static inline int highlander_i2c_wait_xfer_done(struct highlander_i2c_dev *dev)
201{
202 if (dev->irq)
203 wait_for_completion_timeout(&dev->cmd_complete,
204 msecs_to_jiffies(iic_timeout));
205 else
206 /* busy looping, the IRQ of champions */
207 highlander_i2c_poll(dev);
208
209 return highlander_i2c_wait_for_ack(dev);
210}
211
212static int highlander_i2c_read(struct highlander_i2c_dev *dev)
213{
214 int i, cnt;
215 u16 data[16];
216
217 if (highlander_i2c_wait_for_bbsy(dev))
218 return -EAGAIN;
219
220 highlander_i2c_start(dev);
221
222 if (highlander_i2c_wait_xfer_done(dev)) {
223 dev_err(dev->dev, "Arbitration loss\n");
224 return -EAGAIN;
225 }
226
227 /*
228 * The R0P7780LC0011RL FPGA needs a significant delay between
229 * data read cycles, otherwise the transciever gets confused and
230 * garbage is returned when the read is subsequently aborted.
231 *
232 * It is not sufficient to wait for BBSY.
233 *
234 * While this generally only applies to the older SH7780-based
235 * Highlanders, the same issue can be observed on SH7785 ones,
236 * albeit less frequently. SH7780-based Highlanders may need
237 * this to be as high as 1000 ms.
238 */
239 if (iic_read_delay && time_before(jiffies, dev->last_read_time +
240 msecs_to_jiffies(iic_read_delay)))
241 msleep(jiffies_to_msecs((dev->last_read_time +
242 msecs_to_jiffies(iic_read_delay)) - jiffies));
243
244 cnt = (dev->buf_len + 1) >> 1;
245 for (i = 0; i < cnt; i++) {
246 data[i] = ioread16(dev->base + SMTRDR + (i * sizeof(u16)));
247 dev_dbg(dev->dev, "read data[%x] 0x%04x\n", i, data[i]);
248 }
249
250 smbus_read_data(data, dev->buf, dev->buf_len);
251
252 dev->last_read_time = jiffies;
253
254 return 0;
255}
256
257static int highlander_i2c_write(struct highlander_i2c_dev *dev)
258{
259 int i, cnt;
260 u16 data[16];
261
262 smbus_write_data(dev->buf, data, dev->buf_len);
263
264 cnt = (dev->buf_len + 1) >> 1;
265 for (i = 0; i < cnt; i++) {
266 iowrite16(data[i], dev->base + SMTRDR + (i * sizeof(u16)));
267 dev_dbg(dev->dev, "write data[%x] 0x%04x\n", i, data[i]);
268 }
269
270 if (highlander_i2c_wait_for_bbsy(dev))
271 return -EAGAIN;
272
273 highlander_i2c_start(dev);
274
275 return highlander_i2c_wait_xfer_done(dev);
276}
277
278static int highlander_i2c_smbus_xfer(struct i2c_adapter *adap, u16 addr,
279 unsigned short flags, char read_write,
280 u8 command, int size,
281 union i2c_smbus_data *data)
282{
283 struct highlander_i2c_dev *dev = i2c_get_adapdata(adap);
284 int read = read_write & I2C_SMBUS_READ;
285 u16 tmp;
286
287 init_completion(&dev->cmd_complete);
288
289 dev_dbg(dev->dev, "addr %04x, command %02x, read_write %d, size %d\n",
290 addr, command, read_write, size);
291
292 /*
293 * Set up the buffer and transfer size
294 */
295 switch (size) {
296 case I2C_SMBUS_BYTE_DATA:
297 dev->buf = &data->byte;
298 dev->buf_len = 1;
299 break;
300 case I2C_SMBUS_I2C_BLOCK_DATA:
301 dev->buf = &data->block[1];
302 dev->buf_len = data->block[0];
303 break;
304 default:
305 dev_err(dev->dev, "unsupported command %d\n", size);
306 return -EINVAL;
307 }
308
309 /*
310 * Encode the mode setting
311 */
312 tmp = ioread16(dev->base + SMMR);
313 tmp &= ~(SMMR_MODE0 | SMMR_MODE1);
314
315 switch (dev->buf_len) {
316 case 1:
317 /* default */
318 break;
319 case 8:
320 tmp |= SMMR_MODE0;
321 break;
322 case 16:
323 tmp |= SMMR_MODE1;
324 break;
325 case 32:
326 tmp |= (SMMR_MODE0 | SMMR_MODE1);
327 break;
328 default:
329 dev_err(dev->dev, "unsupported xfer size %d\n", dev->buf_len);
330 return -EINVAL;
331 }
332
333 iowrite16(tmp, dev->base + SMMR);
334
335 /* Ensure we're in a sane state */
336 highlander_i2c_done(dev);
337
338 /* Set slave address */
339 iowrite16((addr << 1) | read, dev->base + SMSMADR);
340
341 highlander_i2c_command(dev, command, dev->buf_len);
342
343 if (read)
344 return highlander_i2c_read(dev);
345 else
346 return highlander_i2c_write(dev);
347}
348
349static u32 highlander_i2c_func(struct i2c_adapter *adapter)
350{
351 return I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_I2C_BLOCK;
352}
353
354static const struct i2c_algorithm highlander_i2c_algo = {
355 .smbus_xfer = highlander_i2c_smbus_xfer,
356 .functionality = highlander_i2c_func,
357};
358
359static int __devinit highlander_i2c_probe(struct platform_device *pdev)
360{
361 struct highlander_i2c_dev *dev;
362 struct i2c_adapter *adap;
363 struct resource *res;
364 int ret;
365
366 res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
367 if (unlikely(!res)) {
368 dev_err(&pdev->dev, "no mem resource\n");
369 return -ENODEV;
370 }
371
372 dev = kzalloc(sizeof(struct highlander_i2c_dev), GFP_KERNEL);
373 if (unlikely(!dev))
374 return -ENOMEM;
375
376 dev->base = ioremap_nocache(res->start, res->end - res->start + 1);
377 if (unlikely(!dev->base)) {
378 ret = -ENXIO;
379 goto err;
380 }
381
382 dev->dev = &pdev->dev;
383 platform_set_drvdata(pdev, dev);
384
385 dev->irq = platform_get_irq(pdev, 0);
386 if (iic_force_poll)
387 dev->irq = 0;
388
389 if (dev->irq) {
390 ret = request_irq(dev->irq, highlander_i2c_irq, IRQF_DISABLED,
391 pdev->name, dev);
392 if (unlikely(ret))
393 goto err_unmap;
394
395 highlander_i2c_irq_enable(dev);
396 } else {
397 dev_notice(&pdev->dev, "no IRQ, using polling mode\n");
398 highlander_i2c_irq_disable(dev);
399 }
400
401 dev->last_read_time = jiffies; /* initial read jiffies */
402
403 highlander_i2c_setup(dev);
404
405 adap = &dev->adapter;
406 i2c_set_adapdata(adap, dev);
407 adap->owner = THIS_MODULE;
408 adap->class = I2C_CLASS_HWMON;
409 strlcpy(adap->name, "HL FPGA I2C adapter", sizeof(adap->name));
410 adap->algo = &highlander_i2c_algo;
411 adap->dev.parent = &pdev->dev;
412 adap->nr = pdev->id;
413
414 /*
415 * Reset the adapter
416 */
417 ret = highlander_i2c_reset(dev);
418 if (unlikely(ret)) {
419 dev_err(&pdev->dev, "controller didn't come up\n");
420 goto err_free_irq;
421 }
422
423 ret = i2c_add_numbered_adapter(adap);
424 if (unlikely(ret)) {
425 dev_err(&pdev->dev, "failure adding adapter\n");
426 goto err_free_irq;
427 }
428
429 return 0;
430
431err_free_irq:
432 if (dev->irq)
433 free_irq(dev->irq, dev);
434err_unmap:
435 iounmap(dev->base);
436err:
437 kfree(dev);
438
439 platform_set_drvdata(pdev, NULL);
440
441 return ret;
442}
443
444static int __devexit highlander_i2c_remove(struct platform_device *pdev)
445{
446 struct highlander_i2c_dev *dev = platform_get_drvdata(pdev);
447
448 i2c_del_adapter(&dev->adapter);
449
450 if (dev->irq)
451 free_irq(dev->irq, dev);
452
453 iounmap(dev->base);
454 kfree(dev);
455
456 platform_set_drvdata(pdev, NULL);
457
458 return 0;
459}
460
461static struct platform_driver highlander_i2c_driver = {
462 .driver = {
463 .name = "i2c-highlander",
464 .owner = THIS_MODULE,
465 },
466
467 .probe = highlander_i2c_probe,
468 .remove = __devexit_p(highlander_i2c_remove),
469};
470
471static int __init highlander_i2c_init(void)
472{
473 return platform_driver_register(&highlander_i2c_driver);
474}
475
476static void __exit highlander_i2c_exit(void)
477{
478 platform_driver_unregister(&highlander_i2c_driver);
479}
480
481module_init(highlander_i2c_init);
482module_exit(highlander_i2c_exit);
483
484MODULE_AUTHOR("Paul Mundt");
485MODULE_DESCRIPTION("Renesas Highlander FPGA I2C/SMBus adapter");
486MODULE_LICENSE("GPL v2");
487
488module_param(iic_force_poll, bool, 0);
489module_param(iic_force_normal, bool, 0);
490module_param(iic_timeout, int, 0);
491module_param(iic_read_delay, int, 0);
492
493MODULE_PARM_DESC(iic_force_poll, "Force polling mode");
494MODULE_PARM_DESC(iic_force_normal,
495 "Force normal mode (100 kHz), default is fast mode (400 kHz)");
496MODULE_PARM_DESC(iic_timeout, "Set timeout value in msecs (default 1000 ms)");
497MODULE_PARM_DESC(iic_read_delay,
498 "Delay between data read cycles (default 0 ms)");
diff --git a/drivers/i2c/busses/i2c-parport-light.c b/drivers/i2c/busses/i2c-parport-light.c
index c6faf9bdad18..b2b8380f6602 100644
--- a/drivers/i2c/busses/i2c-parport-light.c
+++ b/drivers/i2c/busses/i2c-parport-light.c
@@ -123,11 +123,6 @@ static struct i2c_adapter parport_adapter = {
123static int __devinit i2c_parport_probe(struct platform_device *pdev) 123static int __devinit i2c_parport_probe(struct platform_device *pdev)
124{ 124{
125 int err; 125 int err;
126 struct resource *res;
127
128 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
129 if (!request_region(res->start, res->end - res->start + 1, DRVNAME))
130 return -EBUSY;
131 126
132 /* Reset hardware to a sane state (SCL and SDA high) */ 127 /* Reset hardware to a sane state (SCL and SDA high) */
133 parport_setsda(NULL, 1); 128 parport_setsda(NULL, 1);
@@ -138,29 +133,19 @@ static int __devinit i2c_parport_probe(struct platform_device *pdev)
138 133
139 parport_adapter.dev.parent = &pdev->dev; 134 parport_adapter.dev.parent = &pdev->dev;
140 err = i2c_bit_add_bus(&parport_adapter); 135 err = i2c_bit_add_bus(&parport_adapter);
141 if (err) { 136 if (err)
142 dev_err(&pdev->dev, "Unable to register with I2C\n"); 137 dev_err(&pdev->dev, "Unable to register with I2C\n");
143 goto exit_region;
144 }
145 return 0;
146
147exit_region:
148 release_region(res->start, res->end - res->start + 1);
149 return err; 138 return err;
150} 139}
151 140
152static int __devexit i2c_parport_remove(struct platform_device *pdev) 141static int __devexit i2c_parport_remove(struct platform_device *pdev)
153{ 142{
154 struct resource *res;
155
156 i2c_del_adapter(&parport_adapter); 143 i2c_del_adapter(&parport_adapter);
157 144
158 /* Un-init if needed (power off...) */ 145 /* Un-init if needed (power off...) */
159 if (adapter_parm[type].init.val) 146 if (adapter_parm[type].init.val)
160 line_set(0, &adapter_parm[type].init); 147 line_set(0, &adapter_parm[type].init);
161 148
162 res = platform_get_resource(pdev, IORESOURCE_IO, 0);
163 release_region(res->start, res->end - res->start + 1);
164 return 0; 149 return 0;
165} 150}
166 151
@@ -175,12 +160,6 @@ static struct platform_driver i2c_parport_driver = {
175 160
176static int __init i2c_parport_device_add(u16 address) 161static int __init i2c_parport_device_add(u16 address)
177{ 162{
178 struct resource res = {
179 .start = address,
180 .end = address + 2,
181 .name = DRVNAME,
182 .flags = IORESOURCE_IO,
183 };
184 int err; 163 int err;
185 164
186 pdev = platform_device_alloc(DRVNAME, -1); 165 pdev = platform_device_alloc(DRVNAME, -1);
@@ -190,13 +169,6 @@ static int __init i2c_parport_device_add(u16 address)
190 goto exit; 169 goto exit;
191 } 170 }
192 171
193 err = platform_device_add_resources(pdev, &res, 1);
194 if (err) {
195 printk(KERN_ERR DRVNAME ": Device resource addition failed "
196 "(%d)\n", err);
197 goto exit_device_put;
198 }
199
200 err = platform_device_add(pdev); 172 err = platform_device_add(pdev);
201 if (err) { 173 if (err) {
202 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n", 174 printk(KERN_ERR DRVNAME ": Device addition failed (%d)\n",
@@ -231,13 +203,16 @@ static int __init i2c_parport_init(void)
231 base = DEFAULT_BASE; 203 base = DEFAULT_BASE;
232 } 204 }
233 205
206 if (!request_region(base, 3, DRVNAME))
207 return -EBUSY;
208
234 if (!adapter_parm[type].getscl.val) 209 if (!adapter_parm[type].getscl.val)
235 parport_algo_data.getscl = NULL; 210 parport_algo_data.getscl = NULL;
236 211
237 /* Sets global pdev as a side effect */ 212 /* Sets global pdev as a side effect */
238 err = i2c_parport_device_add(base); 213 err = i2c_parport_device_add(base);
239 if (err) 214 if (err)
240 goto exit; 215 goto exit_release;
241 216
242 err = platform_driver_register(&i2c_parport_driver); 217 err = platform_driver_register(&i2c_parport_driver);
243 if (err) 218 if (err)
@@ -247,7 +222,8 @@ static int __init i2c_parport_init(void)
247 222
248exit_device: 223exit_device:
249 platform_device_unregister(pdev); 224 platform_device_unregister(pdev);
250exit: 225exit_release:
226 release_region(base, 3);
251 return err; 227 return err;
252} 228}
253 229
@@ -255,6 +231,7 @@ static void __exit i2c_parport_exit(void)
255{ 231{
256 platform_driver_unregister(&i2c_parport_driver); 232 platform_driver_unregister(&i2c_parport_driver);
257 platform_device_unregister(pdev); 233 platform_device_unregister(pdev);
234 release_region(base, 3);
258} 235}
259 236
260MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>"); 237MODULE_AUTHOR("Jean Delvare <khali@linux-fr.org>");
diff --git a/drivers/i2c/busses/i2c-pca-isa.c b/drivers/i2c/busses/i2c-pca-isa.c
index a119784bae10..f80df9ae5054 100644
--- a/drivers/i2c/busses/i2c-pca-isa.c
+++ b/drivers/i2c/busses/i2c-pca-isa.c
@@ -36,8 +36,8 @@
36#define DRIVER "i2c-pca-isa" 36#define DRIVER "i2c-pca-isa"
37#define IO_SIZE 4 37#define IO_SIZE 4
38 38
39static unsigned long base = 0x330; 39static unsigned long base;
40static int irq = 10; 40static int irq = -1;
41 41
42/* Data sheet recommends 59kHz for 100kHz operation due to variation 42/* Data sheet recommends 59kHz for 100kHz operation due to variation
43 * in the actual clock rate */ 43 * in the actual clock rate */
@@ -107,6 +107,19 @@ static struct i2c_adapter pca_isa_ops = {
107 .timeout = 100, 107 .timeout = 100,
108}; 108};
109 109
110static int __devinit pca_isa_match(struct device *dev, unsigned int id)
111{
112 int match = base != 0;
113
114 if (match) {
115 if (irq <= -1)
116 dev_warn(dev, "Using polling mode (specify irq)\n");
117 } else
118 dev_err(dev, "Please specify I/O base\n");
119
120 return match;
121}
122
110static int __devinit pca_isa_probe(struct device *dev, unsigned int id) 123static int __devinit pca_isa_probe(struct device *dev, unsigned int id)
111{ 124{
112 init_waitqueue_head(&pca_wait); 125 init_waitqueue_head(&pca_wait);
@@ -153,7 +166,7 @@ static int __devexit pca_isa_remove(struct device *dev, unsigned int id)
153{ 166{
154 i2c_del_adapter(&pca_isa_ops); 167 i2c_del_adapter(&pca_isa_ops);
155 168
156 if (irq > 0) { 169 if (irq > -1) {
157 disable_irq(irq); 170 disable_irq(irq);
158 free_irq(irq, &pca_isa_ops); 171 free_irq(irq, &pca_isa_ops);
159 } 172 }
@@ -163,6 +176,7 @@ static int __devexit pca_isa_remove(struct device *dev, unsigned int id)
163} 176}
164 177
165static struct isa_driver pca_isa_driver = { 178static struct isa_driver pca_isa_driver = {
179 .match = pca_isa_match,
166 .probe = pca_isa_probe, 180 .probe = pca_isa_probe,
167 .remove = __devexit_p(pca_isa_remove), 181 .remove = __devexit_p(pca_isa_remove),
168 .driver = { 182 .driver = {
diff --git a/drivers/i2c/busses/i2c-viapro.c b/drivers/i2c/busses/i2c-viapro.c
index 862eb352a2d9..73dc52e114eb 100644
--- a/drivers/i2c/busses/i2c-viapro.c
+++ b/drivers/i2c/busses/i2c-viapro.c
@@ -36,6 +36,7 @@
36 VT8237S 0x3372 yes 36 VT8237S 0x3372 yes
37 VT8251 0x3287 yes 37 VT8251 0x3287 yes
38 CX700 0x8324 yes 38 CX700 0x8324 yes
39 VX800/VX820 0x8353 yes
39 40
40 Note: we assume there can only be one device, with one SMBus interface. 41 Note: we assume there can only be one device, with one SMBus interface.
41*/ 42*/
@@ -82,6 +83,7 @@ static unsigned short SMBHSTCFG = 0xD2;
82#define VT596_BYTE 0x04 83#define VT596_BYTE 0x04
83#define VT596_BYTE_DATA 0x08 84#define VT596_BYTE_DATA 0x08
84#define VT596_WORD_DATA 0x0C 85#define VT596_WORD_DATA 0x0C
86#define VT596_PROC_CALL 0x10
85#define VT596_BLOCK_DATA 0x14 87#define VT596_BLOCK_DATA 0x14
86#define VT596_I2C_BLOCK_DATA 0x34 88#define VT596_I2C_BLOCK_DATA 0x34
87 89
@@ -232,6 +234,12 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
232 } 234 }
233 size = VT596_WORD_DATA; 235 size = VT596_WORD_DATA;
234 break; 236 break;
237 case I2C_SMBUS_PROC_CALL:
238 outb_p(command, SMBHSTCMD);
239 outb_p(data->word & 0xff, SMBHSTDAT0);
240 outb_p((data->word & 0xff00) >> 8, SMBHSTDAT1);
241 size = VT596_PROC_CALL;
242 break;
235 case I2C_SMBUS_I2C_BLOCK_DATA: 243 case I2C_SMBUS_I2C_BLOCK_DATA:
236 if (!(vt596_features & FEATURE_I2CBLOCK)) 244 if (!(vt596_features & FEATURE_I2CBLOCK))
237 goto exit_unsupported; 245 goto exit_unsupported;
@@ -262,6 +270,9 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
262 if (status) 270 if (status)
263 return status; 271 return status;
264 272
273 if (size == VT596_PROC_CALL)
274 read_write = I2C_SMBUS_READ;
275
265 if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK)) 276 if ((read_write == I2C_SMBUS_WRITE) || (size == VT596_QUICK))
266 return 0; 277 return 0;
267 278
@@ -271,6 +282,7 @@ static s32 vt596_access(struct i2c_adapter *adap, u16 addr,
271 data->byte = inb_p(SMBHSTDAT0); 282 data->byte = inb_p(SMBHSTDAT0);
272 break; 283 break;
273 case VT596_WORD_DATA: 284 case VT596_WORD_DATA:
285 case VT596_PROC_CALL:
274 data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8); 286 data->word = inb_p(SMBHSTDAT0) + (inb_p(SMBHSTDAT1) << 8);
275 break; 287 break;
276 case VT596_I2C_BLOCK_DATA: 288 case VT596_I2C_BLOCK_DATA:
@@ -295,7 +307,7 @@ static u32 vt596_func(struct i2c_adapter *adapter)
295{ 307{
296 u32 func = I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE | 308 u32 func = I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
297 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA | 309 I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA |
298 I2C_FUNC_SMBUS_BLOCK_DATA; 310 I2C_SMBUS_PROC_CALL | I2C_FUNC_SMBUS_BLOCK_DATA;
299 311
300 if (vt596_features & FEATURE_I2CBLOCK) 312 if (vt596_features & FEATURE_I2CBLOCK)
301 func |= I2C_FUNC_SMBUS_I2C_BLOCK; 313 func |= I2C_FUNC_SMBUS_I2C_BLOCK;
@@ -396,6 +408,7 @@ found:
396 408
397 switch (pdev->device) { 409 switch (pdev->device) {
398 case PCI_DEVICE_ID_VIA_CX700: 410 case PCI_DEVICE_ID_VIA_CX700:
411 case PCI_DEVICE_ID_VIA_VX800:
399 case PCI_DEVICE_ID_VIA_8251: 412 case PCI_DEVICE_ID_VIA_8251:
400 case PCI_DEVICE_ID_VIA_8237: 413 case PCI_DEVICE_ID_VIA_8237:
401 case PCI_DEVICE_ID_VIA_8237A: 414 case PCI_DEVICE_ID_VIA_8237A:
@@ -459,6 +472,8 @@ static struct pci_device_id vt596_ids[] = {
459 .driver_data = SMBBA3 }, 472 .driver_data = SMBBA3 },
460 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700), 473 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_CX700),
461 .driver_data = SMBBA3 }, 474 .driver_data = SMBBA3 },
475 { PCI_DEVICE(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_VX800),
476 .driver_data = SMBBA3 },
462 { 0, } 477 { 0, }
463}; 478};
464 479
diff --git a/drivers/i2c/chips/isp1301_omap.c b/drivers/i2c/chips/isp1301_omap.c
index 4655b794ebe3..28902ebd5539 100644
--- a/drivers/i2c/chips/isp1301_omap.c
+++ b/drivers/i2c/chips/isp1301_omap.c
@@ -49,10 +49,9 @@ MODULE_LICENSE("GPL");
49 49
50struct isp1301 { 50struct isp1301 {
51 struct otg_transceiver otg; 51 struct otg_transceiver otg;
52 struct i2c_client client; 52 struct i2c_client *client;
53 void (*i2c_release)(struct device *dev); 53 void (*i2c_release)(struct device *dev);
54 54
55 int irq;
56 int irq_type; 55 int irq_type;
57 56
58 u32 last_otg_ctrl; 57 u32 last_otg_ctrl;
@@ -138,14 +137,6 @@ static inline void notresponding(struct isp1301 *isp)
138 137
139/*-------------------------------------------------------------------------*/ 138/*-------------------------------------------------------------------------*/
140 139
141/* only two addresses possible */
142#define ISP_BASE 0x2c
143static unsigned short normal_i2c[] = {
144 ISP_BASE, ISP_BASE + 1,
145 I2C_CLIENT_END };
146
147I2C_CLIENT_INSMOD;
148
149static struct i2c_driver isp1301_driver; 140static struct i2c_driver isp1301_driver;
150 141
151/* smbus apis are used for portability */ 142/* smbus apis are used for portability */
@@ -153,25 +144,25 @@ static struct i2c_driver isp1301_driver;
153static inline u8 144static inline u8
154isp1301_get_u8(struct isp1301 *isp, u8 reg) 145isp1301_get_u8(struct isp1301 *isp, u8 reg)
155{ 146{
156 return i2c_smbus_read_byte_data(&isp->client, reg + 0); 147 return i2c_smbus_read_byte_data(isp->client, reg + 0);
157} 148}
158 149
159static inline int 150static inline int
160isp1301_get_u16(struct isp1301 *isp, u8 reg) 151isp1301_get_u16(struct isp1301 *isp, u8 reg)
161{ 152{
162 return i2c_smbus_read_word_data(&isp->client, reg); 153 return i2c_smbus_read_word_data(isp->client, reg);
163} 154}
164 155
165static inline int 156static inline int
166isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits) 157isp1301_set_bits(struct isp1301 *isp, u8 reg, u8 bits)
167{ 158{
168 return i2c_smbus_write_byte_data(&isp->client, reg + 0, bits); 159 return i2c_smbus_write_byte_data(isp->client, reg + 0, bits);
169} 160}
170 161
171static inline int 162static inline int
172isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits) 163isp1301_clear_bits(struct isp1301 *isp, u8 reg, u8 bits)
173{ 164{
174 return i2c_smbus_write_byte_data(&isp->client, reg + 1, bits); 165 return i2c_smbus_write_byte_data(isp->client, reg + 1, bits);
175} 166}
176 167
177/*-------------------------------------------------------------------------*/ 168/*-------------------------------------------------------------------------*/
@@ -349,10 +340,10 @@ isp1301_defer_work(struct isp1301 *isp, int work)
349 int status; 340 int status;
350 341
351 if (isp && !test_and_set_bit(work, &isp->todo)) { 342 if (isp && !test_and_set_bit(work, &isp->todo)) {
352 (void) get_device(&isp->client.dev); 343 (void) get_device(&isp->client->dev);
353 status = schedule_work(&isp->work); 344 status = schedule_work(&isp->work);
354 if (!status && !isp->working) 345 if (!status && !isp->working)
355 dev_vdbg(&isp->client.dev, 346 dev_vdbg(&isp->client->dev,
356 "work item %d may be lost\n", work); 347 "work item %d may be lost\n", work);
357 } 348 }
358} 349}
@@ -1135,7 +1126,7 @@ isp1301_work(struct work_struct *work)
1135 /* transfer state from otg engine to isp1301 */ 1126 /* transfer state from otg engine to isp1301 */
1136 if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) { 1127 if (test_and_clear_bit(WORK_UPDATE_ISP, &isp->todo)) {
1137 otg_update_isp(isp); 1128 otg_update_isp(isp);
1138 put_device(&isp->client.dev); 1129 put_device(&isp->client->dev);
1139 } 1130 }
1140#endif 1131#endif
1141 /* transfer state from isp1301 to otg engine */ 1132 /* transfer state from isp1301 to otg engine */
@@ -1143,7 +1134,7 @@ isp1301_work(struct work_struct *work)
1143 u8 stat = isp1301_clear_latch(isp); 1134 u8 stat = isp1301_clear_latch(isp);
1144 1135
1145 isp_update_otg(isp, stat); 1136 isp_update_otg(isp, stat);
1146 put_device(&isp->client.dev); 1137 put_device(&isp->client->dev);
1147 } 1138 }
1148 1139
1149 if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) { 1140 if (test_and_clear_bit(WORK_HOST_RESUME, &isp->todo)) {
@@ -1178,7 +1169,7 @@ isp1301_work(struct work_struct *work)
1178 } 1169 }
1179 host_resume(isp); 1170 host_resume(isp);
1180 // mdelay(10); 1171 // mdelay(10);
1181 put_device(&isp->client.dev); 1172 put_device(&isp->client->dev);
1182 } 1173 }
1183 1174
1184 if (test_and_clear_bit(WORK_TIMER, &isp->todo)) { 1175 if (test_and_clear_bit(WORK_TIMER, &isp->todo)) {
@@ -1187,15 +1178,15 @@ isp1301_work(struct work_struct *work)
1187 if (!stop) 1178 if (!stop)
1188 mod_timer(&isp->timer, jiffies + TIMER_JIFFIES); 1179 mod_timer(&isp->timer, jiffies + TIMER_JIFFIES);
1189#endif 1180#endif
1190 put_device(&isp->client.dev); 1181 put_device(&isp->client->dev);
1191 } 1182 }
1192 1183
1193 if (isp->todo) 1184 if (isp->todo)
1194 dev_vdbg(&isp->client.dev, 1185 dev_vdbg(&isp->client->dev,
1195 "work done, todo = 0x%lx\n", 1186 "work done, todo = 0x%lx\n",
1196 isp->todo); 1187 isp->todo);
1197 if (stop) { 1188 if (stop) {
1198 dev_dbg(&isp->client.dev, "stop\n"); 1189 dev_dbg(&isp->client->dev, "stop\n");
1199 break; 1190 break;
1200 } 1191 }
1201 } while (isp->todo); 1192 } while (isp->todo);
@@ -1219,7 +1210,7 @@ static void isp1301_release(struct device *dev)
1219{ 1210{
1220 struct isp1301 *isp; 1211 struct isp1301 *isp;
1221 1212
1222 isp = container_of(dev, struct isp1301, client.dev); 1213 isp = dev_get_drvdata(dev);
1223 1214
1224 /* ugly -- i2c hijacks our memory hook to wait_for_completion() */ 1215 /* ugly -- i2c hijacks our memory hook to wait_for_completion() */
1225 if (isp->i2c_release) 1216 if (isp->i2c_release)
@@ -1229,15 +1220,15 @@ static void isp1301_release(struct device *dev)
1229 1220
1230static struct isp1301 *the_transceiver; 1221static struct isp1301 *the_transceiver;
1231 1222
1232static int isp1301_detach_client(struct i2c_client *i2c) 1223static int __exit isp1301_remove(struct i2c_client *i2c)
1233{ 1224{
1234 struct isp1301 *isp; 1225 struct isp1301 *isp;
1235 1226
1236 isp = container_of(i2c, struct isp1301, client); 1227 isp = i2c_get_clientdata(i2c);
1237 1228
1238 isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0); 1229 isp1301_clear_bits(isp, ISP1301_INTERRUPT_FALLING, ~0);
1239 isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0); 1230 isp1301_clear_bits(isp, ISP1301_INTERRUPT_RISING, ~0);
1240 free_irq(isp->irq, isp); 1231 free_irq(i2c->irq, isp);
1241#ifdef CONFIG_USB_OTG 1232#ifdef CONFIG_USB_OTG
1242 otg_unbind(isp); 1233 otg_unbind(isp);
1243#endif 1234#endif
@@ -1252,7 +1243,7 @@ static int isp1301_detach_client(struct i2c_client *i2c)
1252 put_device(&i2c->dev); 1243 put_device(&i2c->dev);
1253 the_transceiver = 0; 1244 the_transceiver = 0;
1254 1245
1255 return i2c_detach_client(i2c); 1246 return 0;
1256} 1247}
1257 1248
1258/*-------------------------------------------------------------------------*/ 1249/*-------------------------------------------------------------------------*/
@@ -1285,7 +1276,7 @@ static int isp1301_otg_enable(struct isp1301 *isp)
1285 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, 1276 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
1286 INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND); 1277 INTR_VBUS_VLD | INTR_SESS_VLD | INTR_ID_GND);
1287 1278
1288 dev_info(&isp->client.dev, "ready for dual-role USB ...\n"); 1279 dev_info(&isp->client->dev, "ready for dual-role USB ...\n");
1289 1280
1290 return 0; 1281 return 0;
1291} 1282}
@@ -1310,7 +1301,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
1310 1301
1311#ifdef CONFIG_USB_OTG 1302#ifdef CONFIG_USB_OTG
1312 isp->otg.host = host; 1303 isp->otg.host = host;
1313 dev_dbg(&isp->client.dev, "registered host\n"); 1304 dev_dbg(&isp->client->dev, "registered host\n");
1314 host_suspend(isp); 1305 host_suspend(isp);
1315 if (isp->otg.gadget) 1306 if (isp->otg.gadget)
1316 return isp1301_otg_enable(isp); 1307 return isp1301_otg_enable(isp);
@@ -1325,7 +1316,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
1325 if (machine_is_omap_h2()) 1316 if (machine_is_omap_h2())
1326 isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0); 1317 isp1301_set_bits(isp, ISP1301_MODE_CONTROL_1, MC1_DAT_SE0);
1327 1318
1328 dev_info(&isp->client.dev, "A-Host sessions ok\n"); 1319 dev_info(&isp->client->dev, "A-Host sessions ok\n");
1329 isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING, 1320 isp1301_set_bits(isp, ISP1301_INTERRUPT_RISING,
1330 INTR_ID_GND); 1321 INTR_ID_GND);
1331 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, 1322 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
@@ -1343,7 +1334,7 @@ isp1301_set_host(struct otg_transceiver *otg, struct usb_bus *host)
1343 return 0; 1334 return 0;
1344 1335
1345#else 1336#else
1346 dev_dbg(&isp->client.dev, "host sessions not allowed\n"); 1337 dev_dbg(&isp->client->dev, "host sessions not allowed\n");
1347 return -EINVAL; 1338 return -EINVAL;
1348#endif 1339#endif
1349 1340
@@ -1370,7 +1361,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1370 1361
1371#ifdef CONFIG_USB_OTG 1362#ifdef CONFIG_USB_OTG
1372 isp->otg.gadget = gadget; 1363 isp->otg.gadget = gadget;
1373 dev_dbg(&isp->client.dev, "registered gadget\n"); 1364 dev_dbg(&isp->client->dev, "registered gadget\n");
1374 /* gadget driver may be suspended until vbus_connect () */ 1365 /* gadget driver may be suspended until vbus_connect () */
1375 if (isp->otg.host) 1366 if (isp->otg.host)
1376 return isp1301_otg_enable(isp); 1367 return isp1301_otg_enable(isp);
@@ -1395,7 +1386,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1395 INTR_SESS_VLD); 1386 INTR_SESS_VLD);
1396 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING, 1387 isp1301_set_bits(isp, ISP1301_INTERRUPT_FALLING,
1397 INTR_VBUS_VLD); 1388 INTR_VBUS_VLD);
1398 dev_info(&isp->client.dev, "B-Peripheral sessions ok\n"); 1389 dev_info(&isp->client->dev, "B-Peripheral sessions ok\n");
1399 dump_regs(isp, __func__); 1390 dump_regs(isp, __func__);
1400 1391
1401 /* If this has a Mini-AB connector, this mode is highly 1392 /* If this has a Mini-AB connector, this mode is highly
@@ -1408,7 +1399,7 @@ isp1301_set_peripheral(struct otg_transceiver *otg, struct usb_gadget *gadget)
1408 return 0; 1399 return 0;
1409 1400
1410#else 1401#else
1411 dev_dbg(&isp->client.dev, "peripheral sessions not allowed\n"); 1402 dev_dbg(&isp->client->dev, "peripheral sessions not allowed\n");
1412 return -EINVAL; 1403 return -EINVAL;
1413#endif 1404#endif
1414} 1405}
@@ -1508,12 +1499,10 @@ isp1301_start_hnp(struct otg_transceiver *dev)
1508 1499
1509/*-------------------------------------------------------------------------*/ 1500/*-------------------------------------------------------------------------*/
1510 1501
1511/* no error returns, they'd just make bus scanning stop */ 1502static int __init isp1301_probe(struct i2c_client *i2c)
1512static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
1513{ 1503{
1514 int status; 1504 int status;
1515 struct isp1301 *isp; 1505 struct isp1301 *isp;
1516 struct i2c_client *i2c;
1517 1506
1518 if (the_transceiver) 1507 if (the_transceiver)
1519 return 0; 1508 return 0;
@@ -1527,37 +1516,19 @@ static int isp1301_probe(struct i2c_adapter *bus, int address, int kind)
1527 isp->timer.function = isp1301_timer; 1516 isp->timer.function = isp1301_timer;
1528 isp->timer.data = (unsigned long) isp; 1517 isp->timer.data = (unsigned long) isp;
1529 1518
1530 isp->irq = -1; 1519 i2c_set_clientdata(i2c, isp);
1531 isp->client.addr = address; 1520 isp->client = i2c;
1532 i2c_set_clientdata(&isp->client, isp);
1533 isp->client.adapter = bus;
1534 isp->client.driver = &isp1301_driver;
1535 strlcpy(isp->client.name, DRIVER_NAME, I2C_NAME_SIZE);
1536 i2c = &isp->client;
1537
1538 /* if this is a true probe, verify the chip ... */
1539 if (kind < 0) {
1540 status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
1541 if (status != I2C_VENDOR_ID_PHILIPS) {
1542 dev_dbg(&bus->dev, "addr %d not philips id: %d\n",
1543 address, status);
1544 goto fail1;
1545 }
1546 status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
1547 if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
1548 dev_dbg(&bus->dev, "%d not isp1301, %d\n",
1549 address, status);
1550 goto fail1;
1551 }
1552 }
1553 1521
1554 status = i2c_attach_client(i2c); 1522 /* verify the chip (shouldn't be necesary) */
1555 if (status < 0) { 1523 status = isp1301_get_u16(isp, ISP1301_VENDOR_ID);
1556 dev_dbg(&bus->dev, "can't attach %s to device %d, err %d\n", 1524 if (status != I2C_VENDOR_ID_PHILIPS) {
1557 DRIVER_NAME, address, status); 1525 dev_dbg(&i2c->dev, "not philips id: %d\n", status);
1558fail1: 1526 goto fail;
1559 kfree(isp); 1527 }
1560 return 0; 1528 status = isp1301_get_u16(isp, ISP1301_PRODUCT_ID);
1529 if (status != I2C_PRODUCT_ID_PHILIPS_1301) {
1530 dev_dbg(&i2c->dev, "not isp1301, %d\n", status);
1531 goto fail;
1561 } 1532 }
1562 isp->i2c_release = i2c->dev.release; 1533 isp->i2c_release = i2c->dev.release;
1563 i2c->dev.release = isp1301_release; 1534 i2c->dev.release = isp1301_release;
@@ -1586,7 +1557,7 @@ fail1:
1586 status = otg_bind(isp); 1557 status = otg_bind(isp);
1587 if (status < 0) { 1558 if (status < 0) {
1588 dev_dbg(&i2c->dev, "can't bind OTG\n"); 1559 dev_dbg(&i2c->dev, "can't bind OTG\n");
1589 goto fail2; 1560 goto fail;
1590 } 1561 }
1591#endif 1562#endif
1592 1563
@@ -1599,26 +1570,21 @@ fail1:
1599 1570
1600 /* IRQ wired at M14 */ 1571 /* IRQ wired at M14 */
1601 omap_cfg_reg(M14_1510_GPIO2); 1572 omap_cfg_reg(M14_1510_GPIO2);
1602 isp->irq = OMAP_GPIO_IRQ(2);
1603 if (gpio_request(2, "isp1301") == 0) 1573 if (gpio_request(2, "isp1301") == 0)
1604 gpio_direction_input(2); 1574 gpio_direction_input(2);
1605 isp->irq_type = IRQF_TRIGGER_FALLING; 1575 isp->irq_type = IRQF_TRIGGER_FALLING;
1606 } 1576 }
1607 1577
1608 isp->irq_type |= IRQF_SAMPLE_RANDOM; 1578 isp->irq_type |= IRQF_SAMPLE_RANDOM;
1609 status = request_irq(isp->irq, isp1301_irq, 1579 status = request_irq(i2c->irq, isp1301_irq,
1610 isp->irq_type, DRIVER_NAME, isp); 1580 isp->irq_type, DRIVER_NAME, isp);
1611 if (status < 0) { 1581 if (status < 0) {
1612 dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n", 1582 dev_dbg(&i2c->dev, "can't get IRQ %d, err %d\n",
1613 isp->irq, status); 1583 i2c->irq, status);
1614#ifdef CONFIG_USB_OTG 1584 goto fail;
1615fail2:
1616#endif
1617 i2c_detach_client(i2c);
1618 goto fail1;
1619 } 1585 }
1620 1586
1621 isp->otg.dev = &isp->client.dev; 1587 isp->otg.dev = &i2c->dev;
1622 isp->otg.label = DRIVER_NAME; 1588 isp->otg.label = DRIVER_NAME;
1623 1589
1624 isp->otg.set_host = isp1301_set_host, 1590 isp->otg.set_host = isp1301_set_host,
@@ -1649,22 +1615,25 @@ fail2:
1649 status); 1615 status);
1650 1616
1651 return 0; 1617 return 0;
1652}
1653 1618
1654static int isp1301_scan_bus(struct i2c_adapter *bus) 1619fail:
1655{ 1620 kfree(isp);
1656 if (!i2c_check_functionality(bus, I2C_FUNC_SMBUS_BYTE_DATA 1621 return -ENODEV;
1657 | I2C_FUNC_SMBUS_READ_WORD_DATA))
1658 return -EINVAL;
1659 return i2c_probe(bus, &addr_data, isp1301_probe);
1660} 1622}
1661 1623
1624static const struct i2c_device_id isp1301_id[] = {
1625 { "isp1301_omap", 0 },
1626 { }
1627};
1628MODULE_DEVICE_TABLE(i2c, isp1301_id);
1629
1662static struct i2c_driver isp1301_driver = { 1630static struct i2c_driver isp1301_driver = {
1663 .driver = { 1631 .driver = {
1664 .name = "isp1301_omap", 1632 .name = "isp1301_omap",
1665 }, 1633 },
1666 .attach_adapter = isp1301_scan_bus, 1634 .probe = isp1301_probe,
1667 .detach_client = isp1301_detach_client, 1635 .remove = __exit_p(isp1301_remove),
1636 .id_table = isp1301_id,
1668}; 1637};
1669 1638
1670/*-------------------------------------------------------------------------*/ 1639/*-------------------------------------------------------------------------*/
diff --git a/drivers/i2c/chips/tps65010.c b/drivers/i2c/chips/tps65010.c
index cf02e8fceb42..acf8b9d5f575 100644
--- a/drivers/i2c/chips/tps65010.c
+++ b/drivers/i2c/chips/tps65010.c
@@ -456,14 +456,17 @@ static irqreturn_t tps65010_irq(int irq, void *_tps)
456 456
457/* offsets 0..3 == GPIO1..GPIO4 457/* offsets 0..3 == GPIO1..GPIO4
458 * offsets 4..5 == LED1/nPG, LED2 (we set one of the non-BLINK modes) 458 * offsets 4..5 == LED1/nPG, LED2 (we set one of the non-BLINK modes)
459 * offset 6 == vibrator motor driver
459 */ 460 */
460static void 461static void
461tps65010_gpio_set(struct gpio_chip *chip, unsigned offset, int value) 462tps65010_gpio_set(struct gpio_chip *chip, unsigned offset, int value)
462{ 463{
463 if (offset < 4) 464 if (offset < 4)
464 tps65010_set_gpio_out_value(offset + 1, value); 465 tps65010_set_gpio_out_value(offset + 1, value);
465 else 466 else if (offset < 6)
466 tps65010_set_led(offset - 3, value ? ON : OFF); 467 tps65010_set_led(offset - 3, value ? ON : OFF);
468 else
469 tps65010_set_vib(value);
467} 470}
468 471
469static int 472static int
@@ -477,8 +480,10 @@ tps65010_output(struct gpio_chip *chip, unsigned offset, int value)
477 if (!(tps->outmask & (1 << offset))) 480 if (!(tps->outmask & (1 << offset)))
478 return -EINVAL; 481 return -EINVAL;
479 tps65010_set_gpio_out_value(offset + 1, value); 482 tps65010_set_gpio_out_value(offset + 1, value);
480 } else 483 } else if (offset < 6)
481 tps65010_set_led(offset - 3, value ? ON : OFF); 484 tps65010_set_led(offset - 3, value ? ON : OFF);
485 else
486 tps65010_set_vib(value);
482 487
483 return 0; 488 return 0;
484} 489}
@@ -646,7 +651,7 @@ static int tps65010_probe(struct i2c_client *client,
646 tps->chip.get = tps65010_gpio_get; 651 tps->chip.get = tps65010_gpio_get;
647 652
648 tps->chip.base = board->base; 653 tps->chip.base = board->base;
649 tps->chip.ngpio = 6; 654 tps->chip.ngpio = 7;
650 tps->chip.can_sleep = 1; 655 tps->chip.can_sleep = 1;
651 656
652 status = gpiochip_add(&tps->chip); 657 status = gpiochip_add(&tps->chip);
@@ -675,6 +680,7 @@ static const struct i2c_device_id tps65010_id[] = {
675 { "tps65011", TPS65011 }, 680 { "tps65011", TPS65011 },
676 { "tps65012", TPS65012 }, 681 { "tps65012", TPS65012 },
677 { "tps65013", TPS65013 }, 682 { "tps65013", TPS65013 },
683 { "tps65014", TPS65011 }, /* tps65011 charging at 6.5V max */
678 { } 684 { }
679}; 685};
680MODULE_DEVICE_TABLE(i2c, tps65010_id); 686MODULE_DEVICE_TABLE(i2c, tps65010_id);
diff --git a/drivers/i2c/i2c-core.c b/drivers/i2c/i2c-core.c
index b346a687ab59..42e852d79ffa 100644
--- a/drivers/i2c/i2c-core.c
+++ b/drivers/i2c/i2c-core.c
@@ -437,6 +437,10 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
437{ 437{
438 int res = 0, dummy; 438 int res = 0, dummy;
439 439
440 /* Can't register until after driver model init */
441 if (unlikely(WARN_ON(!i2c_bus_type.p)))
442 return -EAGAIN;
443
440 mutex_init(&adap->bus_lock); 444 mutex_init(&adap->bus_lock);
441 mutex_init(&adap->clist_lock); 445 mutex_init(&adap->clist_lock);
442 INIT_LIST_HEAD(&adap->clients); 446 INIT_LIST_HEAD(&adap->clients);
@@ -696,6 +700,10 @@ int i2c_register_driver(struct module *owner, struct i2c_driver *driver)
696{ 700{
697 int res; 701 int res;
698 702
703 /* Can't register until after driver model init */
704 if (unlikely(WARN_ON(!i2c_bus_type.p)))
705 return -EAGAIN;
706
699 /* new style driver methods can't mix with legacy ones */ 707 /* new style driver methods can't mix with legacy ones */
700 if (is_newstyle_driver(driver)) { 708 if (is_newstyle_driver(driver)) {
701 if (driver->attach_adapter || driver->detach_adapter 709 if (driver->attach_adapter || driver->detach_adapter
@@ -978,7 +986,10 @@ static void __exit i2c_exit(void)
978 bus_unregister(&i2c_bus_type); 986 bus_unregister(&i2c_bus_type);
979} 987}
980 988
981subsys_initcall(i2c_init); 989/* We must initialize early, because some subsystems register i2c drivers
990 * in subsys_initcall() code, but are linked (and initialized) before i2c.
991 */
992postcore_initcall(i2c_init);
982module_exit(i2c_exit); 993module_exit(i2c_exit);
983 994
984/* ---------------------------------------------------- 995/* ----------------------------------------------------
@@ -1677,6 +1688,28 @@ s32 i2c_smbus_write_word_data(struct i2c_client *client, u8 command, u16 value)
1677EXPORT_SYMBOL(i2c_smbus_write_word_data); 1688EXPORT_SYMBOL(i2c_smbus_write_word_data);
1678 1689
1679/** 1690/**
1691 * i2c_smbus_process_call - SMBus "process call" protocol
1692 * @client: Handle to slave device
1693 * @command: Byte interpreted by slave
1694 * @value: 16-bit "word" being written
1695 *
1696 * This executes the SMBus "process call" protocol, returning negative errno
1697 * else a 16-bit unsigned "word" received from the device.
1698 */
1699s32 i2c_smbus_process_call(struct i2c_client *client, u8 command, u16 value)
1700{
1701 union i2c_smbus_data data;
1702 int status;
1703 data.word = value;
1704
1705 status = i2c_smbus_xfer(client->adapter, client->addr, client->flags,
1706 I2C_SMBUS_WRITE, command,
1707 I2C_SMBUS_PROC_CALL, &data);
1708 return (status < 0) ? status : data.word;
1709}
1710EXPORT_SYMBOL(i2c_smbus_process_call);
1711
1712/**
1680 * i2c_smbus_read_block_data - SMBus "block read" protocol 1713 * i2c_smbus_read_block_data - SMBus "block read" protocol
1681 * @client: Handle to slave device 1714 * @client: Handle to slave device
1682 * @command: Byte interpreted by slave 1715 * @command: Byte interpreted by slave
generated by cgit v1.2.2 (git 2.25.0) at 2024-11-21 09:07:33 -0500